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 6645-00-350-8070
NSN 6610-01-659-3277
NSN 4140-01-429-9060
NSN 4140-00-395-2525
NSN 6105-00-643-3826
NSN 5999-01-362-7741
NSN 5910-01-233-5720
NSN 2925-01-460-1601
NSN 5999-01-360-5608
NSN 5915-00-778-7892
NSN 6130-01-499-6250
NSN 5925-01-513-7622