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 6610-01-576-8955
NSN 6320-01-415-0953
NSN 5895-01-017-4838
NSN 6685-01-597-5406
NSN 5960-01-224-7151
NSN 6110-01-146-5796
NSN 5975-01-634-0678
NSN 5920-00-035-4846
NSN 5905-00-821-0967
NSN 6130-00-730-7411
NSN 5999-01-113-7955
NSN 5935-00-770-1925