A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6135-00-753-2276
NSN 5965-01-411-1493
NSN 6240-01-054-9715
NSN 6150-01-381-3522
NSN 6150-01-206-7662
NSN 5975-01-367-6059
NSN 7035-01-293-0322
NSN 6145-01-528-7853
NSN 7035-01-590-1413
NSN 6220-00-542-4898
NSN 5935-01-458-5630
NSN 6240-01-526-9660