About Washers
More
Abrasion-Resistant Rubber and Plastic Sealing Washers
Made of durable material, these washers resist wear from rubbing and scraping surfaces. They create a light duty seal around fasteners to prevent fluids from leaking and damp vibration.
Aramid fabric/Buna-N rubber washers have good oil resistance.
ePTFE plastic washers have excellent weather resistance.
For technical drawings and 3-D models, click on a part number.
Metal-Bonded Sealing Washers
Create a stronger seal than metal or rubber alone. These one-piece washers are metal for strength with a bonded rubber seal that creates a tight grip. Made of neoprene, the seal has good oil and abrasion resistance. Washers are reusable.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
High-Pressure-Rated Metal-Bonded Sealing Washers
Able to withstand pressure greater than 3,000 psi, these one-piece bonded washers create the tightest seals.
Use washers with a rubber seal under partially threaded screws or bolts that have a smooth shaft under the head. They are reusable. Washers with a Buna-N rubber seal have excellent abrasion resistance and good oil, weather, and chemical resistance. Washers with a Fluorocarbon rubber seal resist chemicals and withstand high temperatures.
Zinc-plated steel washers are corrosion resistant in wet environments. 304 stainless steel washers are more corrosion resistant than zinc-plated steel washers. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temp. Range, °F | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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. 8 | 0.156" | 0.385" | 0.036"-0.044" | 8,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 00000 |
304 Stainless Steel with Fluorocarbon Rubber Seal | |||||||||||||
No. 8 | 0.156" | 0.385" | 0.035"-0.045" | 4,400 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 10 | 000000000 | 00000 |
Metal Sealing Washers
Also known as crush washers, these compress when tightened to form a tighter, more durable seal than rubber washers. They are commonly used to seal fluids such as oil and fuel. Washers are not reusable.
Copper washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.
Aluminum washers are lightweight and corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Cushioning Washers
These wool felt washers can be soaked with oil to lubricate joints. Use them to cushion joints and damp vibration.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | ID | OD | Thick. | Min. | Max. | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Wool Felt | ||||||||||
No. 8 | 0.156" | 0.292" | 0.175"-0.201" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 000000 |
Nonporous Alumina Ceramic Tubes
- Color: White
- Max. Temperature: 3075° F
- Fabrication: Fired
- Porosity: 0%
- Compressive Strength: 300,000 psi
Seal out air and gas in high-temperature and high-wear applications. This ultrahard ceramic can also be used in applications that require superior strength.
For technical drawings and 3-D models, click on a part number.