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 5910-00-010-2992
NSN 6685-01-479-0421
NSN 5930-01-020-2372
NSN 6620-01-408-0825
NSN 5930-00-195-9428
NSN 6130-01-301-0063
NSN 6150-01-149-9206
NSN 6130-01-250-0836
NSN 5935-00-584-0985
NSN 5975-01-285-9831
NSN 5920-01-526-7068
NSN 5965-01-093-0642