Flat Washers
Flat Washers, or just Plain Washers, are a flat annulus or ring, often of metal, used to spread the load from the head of a screwed fastening to the base material. Flat washers are used to increase the bearing surface of a nut or fastener's head thus spreading the clamping force over a larger area.
Flat Washer (b18.22.1), showing 200, (click on any line for more information)
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Endries | WI | Flat Washer | Steel | Plain | .375 x .875 x .062 | .375x.875x.062 steel flat washer plain | 18000 |
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| Endries | WI | Flat Washer | 316, 317, A4 Stainless | Plain | 3/4 | 3/4 f/w .765 id x 1.3 12 od x .090 th ty 316 stainless | 12 |
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| Endries | WI | Flat Washer | Fiber | Plain | .140 x .250 x .062 | f/w .140 x .250 x .062 fibre rohs | 57 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10 | m10 a2 stainless flat washer din 125a | 4744 |
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| Hayes | CA | Flat Washer | 316, 317, A4 Stainless | Passivated | M5 | m5 flat washer 316ss pass | 2952 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 | flat ms#812 18-8 304 18-8-0.343 i.d.x0.687o.d.x0.065 thick | 2029 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 | flat ms#813 18-8 304 18-8-0.375i.d.x0.875o.d.x0.071 thick | 1848 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | flat ms#815 18-8 304 18-8-0.437i.d.x1.000o.d.x0.078 thick | 898 |
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| TownCountry | AR | Flat Washer | 316, 317, A4 Stainless | Plain | 3/8 | flat ms#815 s.s. 316 | 76 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 | flat ms#819 18-8 304 18-8-0.562i.d.x1.375o.d.x0.109 thick | 254 |
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| TownCountry | AR | Flat Washer | Nylon (Polyamide) | Black Oxide | 1/4 flat black 1/4i.d.x 1/2o.d.x 1/32 thick | 2260 |
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| TownCountry | AR | Flat Washer | Nylon (Polyamide) | Plain | 1/4 | flat natural-i.d.x3/4o.d.x1/16 thick | 10000 |
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| TownCountry | AR | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | 3/16 flat 1/2 o.d. 1/16 thick black neoprene rubber .500-187-062r | 250 |
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| TownCountry | AR | Flat Washer | Steel | Nickel Plated | 3/16 | flat special | 20000 |
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| TownCountry | AR | Flat Washer | Steel | Zinc/Clear | 3/8 | flat special -0.390i.d.x1.625o.d.x0.063 thick | 118 |
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| TownCountry | AR | Flat Washer | Steel | Zinc/Yellow | 5/8 | flat special -0.625i.d.x1.000o.d.x0.030 thick | 3019 |
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| TownCountry | AR | Flat Washer | Steel | Zinc/Yellow | 13/16 | flat special -0.810i.d.x1.300o.d.x0.040 thick | 3358 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 | flat std 18-8 304 18-8-0.687i.d.x1.500o.d.x0.078 thick | 383 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 | flat std 18-8 304 18-8-0.812i.d.x1.875o.d.x0.109 thick | 61 |
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| TownCountry | AR | Flat Washer | Steel | Plain | #3 | deburring tool 1/2 shank | 1 |
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| Weaver | WA | Flat Washer | Steel | Plain | .188 x .375 x .049 | #8 x 0.375 od flat cadmium mil-spec MS27183-7 | 4822 |
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| Jackson | MS | Flat Washer | Steel | Zinc/Clear | m16 metric flat washer 200 hv zinc clear | 3276 |
| |
| Jackson | MS | Flat Washer | Grade 8 | Zinc/Clear | 1 1/16 | 1 bolt size 2 od 1-1/16 id 5/16 thick thru-hardened grade 8 extra thick heavy pattern flat washer zinc clear | 5 |
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| OneMonroe | MI | Flat Washer | Steel | Plain | pem alternative captive 1 1/4 special dim. flat 1.25x1.60x150 delri | 1004 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Clear | M12 | m12 metric flat washer 200 hv (for 10.9 bolt) zinc clear | 9723 |
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| METRO IND | OH | Flat Washer | Steel | Black Oxide | #4 | #4 tool slotted flat hardened black oxide | 600 |
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| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 | 1/4 tool slotted flat s/s | 248 |
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| Jackson | MS | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 1/2 | 1/4 x 1/2 od flat washer 18-8 stainless steel regular pattern | 1382 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 1 1/2 flat washer 316 stainless 1 5/8 id x 3 1/4 od x 3/16 thick | 3 |
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| Jackson | MS | Flat Washer | Class 10.9 | Plain | M8 | m8 metric flat washer 200 hv (for 10.9 bolt) plain | 13800 |
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| Jackson | MS | Flat Washer | Class 10.9 | Plain | M12 | m12 metric flat washer class 10 plain finish hv200-125-a / 200 hv (for 10.9 bolt) | 9545 |
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| Jackson | MS | Flat Washer | Class 10.9 | Plain | M14 | m14 metric flat washer 200 hv (for 10.9 bolt) plain | 3474 |
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| Jackson | MS | Flat Washer | Class 10.9 | Plain | M30 | m30 metric flat washer 200 hv (for 10.9 bolt) plain | 1147 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M8 | m8 metric flat washer 200 hv (for 10.9 bolt) yellow zinc | 11579 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M12 | m12 metric flat washer 200 hv (for 10.9 bolt) yellow zinc | 1823 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M16 | m16 metric flat washer 200 hv (for 10.9 bolt) yellow zinc | 1515 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M22 | m22 metric flat washer 200 hv (for 10.9 bolt) zinc yellow | 1165 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M27 | m27 metric flat washer 200 hv (for 10.9 bolt) zinc yellow | 200 |
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| Jackson | MS | Flat Washer | Class 8.8 | Plain | M8 | m8 metric flat washer 8.8 plain din 125a | 9000 |
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| Jackson | MS | Flat Washer | Class 8.8 | Plain | M16 | m16 metric flat washer 8.8 plain din 125a | 4600 |
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| Jackson | MS | Flat Washer | Class 8.8 | Zinc/Clear | M10 | m10 metric flat washer 8.8 zinc din 125a | 14506 |
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| Jackson | MS | Flat Washer | Steel | Galvanized | 1/2 x 2 1/4 | 1/2 x 2-1/4 od 3/16 thickk round plate washer galvanized | 194 |
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| Jackson | MS | Flat Washer | Nylon (Polyamide) | Plain | 5/16 x 3/4 x 3/8 | 5/16 id 3/4 od 3/8 thick natural nylon washer | 1039 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 7/8 x 1 3/8 | 7/8 id x 1-3/8 od x 1/4 thick special washer 316 steel | 33 |
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| Jackson | MS | Flat Washer | Steel | Zinc/Clear | M17 x 40 x 5.5 | 17 mm id x 40 mm od x 5.5 mm thick special washer zinc plated (m16 din 7349) | 20 |
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| Jackson | MS | Flat Washer | Brass | Plain | #4 | # 4 flat washer brass | 38 |
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| Jackson | MS | Flat Washer | Nylon (Polyamide) | Plain | #10 | #10 flat washer (.225 id x .50 od x .065 thick) natural nylon | 2500 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M1.6 | flat din 125 | 1996 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M1.7 | flat din 125 | 900 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M10 | flat din 125 | 2862 |
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| METRO IND | OH | Flat Washer | Steel | Zinc/Clear | M10 | flat din 125 | 5821 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M12 | flat din 125 | 2871 |
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| METRO IND | OH | Flat Washer | Steel | Zinc/Black | M12 | flat din 125 | 480 |
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| METRO IND | OH | Flat Washer | Steel | Zinc/Clear | M12 | flat din 125 | 1496 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M14 | flat din 125 | 1535 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M16 | flat din 125 | 990 |
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| METRO IND | OH | Flat Washer | Steel | Zinc/Clear | M16 | flat din 125 | 1100 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M18 | flat din 125 | 367 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M2 | flat din 125 | 2446 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M2.5 | flat din 125 | 87874 |
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| METRO IND | OH | Flat Washer | Steel | Zinc/Clear | M2.5 | flat din 125 | 89369 |
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| YANKEE | NH | Flat Washer | Steel | Zinc/Clear | M10 x 18 | m10 x 18 flat washer (narrow) steel zinc plated din 433 | 2491 |
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| YANKEE | NH | Flat Washer | Steel | Zinc/Clear | M8 x 15 | m8 x 15 flat washer (narrow) steel zinc plated din 433 | 6000 |
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| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 1.00 x 0.070 | 3/8 (0.406 id) x 1.00 od x 0.070 tk oversized flat washer 18-8 stainless steel | 746 |
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| Hayes | CA | Flat Washer | 316, 317, A4 Stainless | Plain | M3 | m3 flat washer 316ss din 433 | 130 |
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| Hayes | CA | Flat Washer | Steel | Zinc/Clear | M10 | m10 hardened flat washer-metric zinc | 250 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M4 x 8 | m4 x 8 flat washer 0.3mm thk 18-8ss | 737 |
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| Hayes | CA | Flat Washer | Steel | Zinc/Clear | M12 x 30 | m12 x 30 (5.5 thick) flat washer zinc | 40 |
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| Hayes | CA | Flat Washer | Plain | M20 | m20 flat washer pln | 24 |
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| Hayes | CA | Flat Washer | Steel | Zinc/Clear | M8 | m8 flat washer b zinc din 125 | 991 |
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| Hayes | CA | Flat Washer | Brass | Plain | .050 x .109 x .016 | .050 x .109 x .016 flat washer brass | 3795 |
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| Hayes | CA | Flat Washer | Brass | Plain | .064 x .125 x .020 | .064 x .125 x .020 flat washer brass | 3500 |
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| Hayes | CA | Flat Washer | 316, 317, A4 Stainless | Plain | #10 x 7/16 | #10 x 7/16 flat washer .060 th 316ss | 1880 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .119 x .250 x .016 | .119 x .250 x .016 flat washer 18-8ss | 16890 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .124 x .203 x .030 | .124 x .203 x .030 flat washer 18-8ss | 6258 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1 1/4 | 1-1/4 flat washer 18-8ss | 126 |
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| Hayes | CA | Flat Washer | Steel | Zinc/Clear | .141 x .312 x .042 | .141 x .312 x .042 flat washer zinc | 2800 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .142 x .435 x .030 | .142 x .435 x .030 flat washer 18-8ss | 5100 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 3/4 | 15795-811 1/4 x 3/4 flat washer 18-8ss | 48 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .171 x .312 x .030 | .171 x .312 x .030 flat washer 18-8ss | 179 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .187 x .250 x .003 | .187 x .250 x .003 shim flat washer 18-8ss | 150 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .187 x 250 x .006 | .187 x 250 x .006 shim flat washer 18-8ss | 140 |
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| Hayes | CA | Flat Washer | Brass | Plain | .188 x .875 x .063 | .188 x .875 x .063 brass flat washer | 509 |
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| Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .192 x .370 x .050 | .192 x .370 x .050 flat washer nylon | 660 |
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| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 10 3/16 | #10-3/16 tool slotted flat s/s | 10 |
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| Jay-Cee | MI | Flat Washer | Steel | Zinc/Clear | 3/16 | riveting burrs 3/8x.194x1/16 | inquire |
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| Jay-Cee | MI | Flat Washer | Steel | Zinc/Black | 5/32 | burrs black 7/16x5/32x.036/.065 | 15943 |
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| Jay-Cee | MI | Flat Washer | Aluminum | Plain | 3/16 | riveting burrs m50660 1/2 odx.056/.062 thick | inquire |
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| Jackson | MS | Flat Washer | Nylon (Polyamide) | Plain | 5/16 x 1 1/2 x 1/16 | 5/16 id 1-1/2 bolt od 1/16 thick special nylon washer natural | 100 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/16 | flat ms#817 18-8 304 18-8-0.500i.d.x1.250o.d.x0.083 thick | 67 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #2 | flat 18-8 304 | 500 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 4875 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 7400 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #0 | flat 18-8 304 | 4400 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6 | flat 18-8 304 | 700 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 875 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #4 | flat | 4000 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #6 | flat | 4300 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #2 | flat | 2500 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | 5/16 | flat | 2000 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | 7/16 | flat | 500 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #6 | flat | 9800 |
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| RCFast | AZ | Flat Washer | Aluminum | Plain | #4 | flat alum (see fw-prbu.125a) | 1300 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #12 | flat 18-8 s/s (id-od +-.005) (dwg #504021 rev.-) | 500 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6 | flat 18-8 304 rohs | 800 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #6 | flat rohs | 2500 |
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| RCFast | AZ | Flat Washer | Steel | Zinc/Yellow | #6 | flat stl rohs | 5000 |
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| RCFast | AZ | Flat Washer | Fiber | Plain | 1/4 | flat hard fibre gray | 10000 |
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| RCFast | AZ | Flat Washer | Aluminum | Plain | #10 | flat | 10900 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #10 | flat | 11300 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 | flat s.s. 304 s.s.t. #c516 | 1428 |
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| Hayes | CA | Flat Washer | Resin (Phenolic, etc.) | Plain | .510 x .688 x .030 | .510x.688x.030 flat phenolic | 85 |
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| METRO IND | OH | Flat Washer | Steel | Plain | M27 | flat din 125 | 100 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10 | flat type-b narrow 18-8 304 | 2500 |
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| American | NY | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 1 1/16 | 1/2 x 1 1/16 od flat washer stainless | 1500 |
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| TownCountry | AR | Flat Washer | Brass | Plain | back plate round polished | 16 |
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| Rapid | NY | Flat Washer | Steel | Plain | 2 | grommets plain assembly metallic plain type-aluminum size 0 (one grommet and one -same material) anodize i/a/w/mil-a-8625 MS20230A10 | 432 |
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| IntScrew | FL | Flat Washer | Silicon Bronze | Plain | 5/16 | 5/16 s.p. flat silicon bronze (3/4 od) | 11740 |
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| QFC | TX | Flat Washer | Steel | Plain | craftech shoulder (dn212-400-18) b18.22.1 | 2657 |
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| QFC | TX | Flat Washer | Steel | Plain | spring (5804-402-2) b18.22.1 | 8324 |
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| QFC | TX | Flat Washer | Copper | Plain | 0.016 x 0.194 x 0. | 0.194 idx0.316 odx0.016 thk flat copper b18.22.1 | 1236 |
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| QFC | TX | Flat Washer | 316, 317, A4 Stainless | Plain | #8 | #8 type-b narrow flat 316 stainless steel b18.22.1 | 1869 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10 | #10 type-b regular flat 18-8 s/s steel dfars-compliant domestic b18.22.1 | 3000 |
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| QFC | TX | Flat Washer | Steel | Galvanized | 1 x 2 1/2 x 0.375 | 1 idx2-1/2 odx0.375 thk custom round carbon steel hot dipped galvanized b18.22.1 | 12367 |
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| QFC | TX | Flat Washer | Nylon (Polyamide) | Plain | .203 x .437 x .038 | .203x.437x.038 nylon flat b18.22.1 | 1000 |
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| QFC | TX | Flat Washer | Nylon (Polyamide) | Plain | .413 x 10.5 | .413id (10.5mm)x.866od (22mm)x.098thk (2.5mm) nylon flat black b18.22.1 | 3000 |
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| QFC | TX | Flat Washer | Steel | Zinc/Yellow | .394 x .657 x .072 | .394x.657x.072 flat steel yellow zinc b18.22.1 | 15425 |
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| QFC | TX | Flat Washer | Silicon Bronze | Plain | 3/16 | 3/16 bzp cut each 362 b18.22.1 | 16650 |
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| QFC | TX | Flat Washer | Silicon Bronze | Plain | 3/16 | 3/16 bzp cut each 362 b18.22.1 | 100 |
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| QFC | TX | Flat Washer | Silicon Bronze | Plain | 9/16 | 9/16 bzp cut ea 22 .625x1.469x.109 b18.22.1 | 151620 |
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| QFC | TX | Flat Washer | Silicon Bronze | Plain | 9/16 | 9/16 bzp cut ea 22 .625x1.469x.109 b18.22.1 | 46 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | .138 x .349 x .030 | .138x.349x.030 flat zinc b18.22.1 | 500 |
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| QFC | TX | Flat Washer | Silicon Bronze | Plain | 1 5/8 | 1 5/8 bzp cut per ea b18.22.1 | 99 |
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| FTS | OH | Flat Washer | Steel | Plain | .260/275 x 1/2 x .06 | 1/4 fw .260/275idx1/2odx.06thk stl | 7875 |
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| B & K FAST | PA | Flat Washer | 316, 317, A4 Stainless | Plain | 5/8 x 1 1/2 | 5/8x1 1/2 od flat s 316 stainless b18.22.1 | 2 |
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| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 | flat washer stainless steel 1/4 (.265 x .500 x .032) | 800 |
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| TSF | TX | Flat Washer | Aluminum | Plain | .256 x .442 x .050 | flat washer alum. .256x.442x.050 | 3570 |
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| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #2 | flat washer ss #2 | 4900 |
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