System of Measurement System of Measurement |
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ID ID |
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OD OD |
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Material Material |
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Thickness Thickness |
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Washer Type Washer Type |
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 | Metal Bonded |
Maximum Pressure for Fluids Maximum Pressure for Fluids |
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Seal Color Seal Color |
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 | Black |
Hardness Hardness |
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Finish Finish |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Minimum Temperature Minimum Temperature |
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Maximum Temperature Maximum Temperature |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Seal Hardness Seal Hardness |
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About Washers
More
High-Pressure-Rated Metal-Bonded Sealing Washers
Zinc-Plated Steel with Buna-N Rubber Seal
304 and 316 Stainless
Steel with PVC Plastic
Sealant Seal
Steel with PVC Plastic
Sealant Seal
Able to withstand pressure greater than 3,000 psi, these one-piece bonded washers create the tightest seals.
Zinc-plated steel washers are corrosion resistant in wet environments. Use these washers under partially threaded nuts or bolts that have a smooth shaft under the head. The Buna-N rubber seal has excellent abrasion resistance and good oil, weather, and chemical resistance. Washers are reusable.
Stainless steel washers are bonded to a PVC sealant that, when tightened, creates an impervious 360° seal around your fastener’s threads. They are not reusable. 304 stainless steel washers are more corrosion resistant than zinc-plated steel washers. They also have good chemical resistance. 316 stainless steel washers have excellent resistance to chemicals and salt water and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temperature Range, °F | ||||||||||||
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| For Screw Size | ID | OD | Thick. | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel with Buna-N Rubber Seal | |||||||||||||
| No. 6 | 0.130" | 0.385" | 0.036"-0.044" | 10,800 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 000000 |
| No. 8 | 0.156" | 0.385" | 0.036"-0.044" | 8,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| No. 10 | 0.180" | 0.443" | 0.045"-0.055" | 6,200 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| 1/4" | 0.240" | 0.505" | 0.045"-0.055" | 5,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 5/16" | 0.301" | 0.603" | 0.045"-0.055" | 3,600 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 3/8" | 0.364" | 0.666" | 0.045"-0.055" | 3,400 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 7/16" | 0.427" | 0.760" | 0.045"-0.055" | 3,600 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 1/2" | 0.490" | 0.880" | 0.045"-0.055" | 4,200 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 9/16" | 0.552" | 1.067" | 0.045"-0.055" | 6,600 | 200 | -30° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 5/8" | 0.615" | 1.193" | 0.045"-0.055" | 7,500 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 3/4" | 0.740" | 1.322" | 0.059"-0.069" | 5,700 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 7/8" | 0.864" | 1.510" | 0.059"-0.069" | 6,000 | 200 | -30° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| 1" | 0.988" | 1.760" | 0.059"-0.069" | 7,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
304 Stainless Steel with PVC Plastic Sealant Seal | |||||||||||||
| No. 6 | 0.148" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 25 | 000000000 | 0000 |
| No. 8 | 0.175" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 25 | 000000000 | 0000 |
| No. 10 | 0.205" | 0.560" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 25 | 000000000 | 0000 |
| 1/4" | 0.255" | 0.625" | 0.068"-0.078" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 10 | 000000000 | 0000 |
| 5/16" | 0.315" | 0.685" | 0.072"-0.082" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.810" | 0.077"-0.087" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 10 | 000000000 | 0000 |
| 7/16" | 0.445" | 0.890" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 5 | 000000000 | 0000 |
| 1/2" | 0.510" | 0.990" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 5 | 000000000 | 0000 |
316 Stainless Steel with PVC Plastic Sealant Seal | |||||||||||||
| No. 4 | 0.124" | 0.396" | 0.050"-0.060" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
| No. 6 | 0.148" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
| No. 8 | 0.175" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
| No. 10 | 0.205" | 0.560" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
| 1/4" | 0.255" | 0.625" | 0.068"-0.078" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 15 | 000000000 | 0000 |
| 5/16" | 0.315" | 0.685" | 0.072"-0.082" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 15 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.810" | 0.077"-0.087" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 10 | 000000000 | 0000 |
| 1/2" | 0.510" | 0.990" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 5 | 000000000 | 0000 |
| 5/8" | 0.639" | 1.135" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |
| 3/4" | 0.770" | 1.280" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |
| 7/8" | 0.893" | 1.440" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |
| 1" | 1.018" | 1.600" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |