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 6645-01-517-1539
NSN 5945-01-495-0509
NSN 5945-00-975-0047
NSN 2925-01-244-3016
NSN 6685-01-263-6052
NSN 5930-00-111-3656
NSN 6130-01-504-1569
NSN 5935-01-033-9122
NSN 5925-01-386-3178
NSN 6240-00-306-9214
NSN 6650-00-107-4417
NSN 5960-00-921-5805