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 6685-01-315-9704
NSN 6650-00-316-4889
NSN 5990-01-411-5930
NSN 6145-01-250-6825
NSN 6685-01-314-4630
NSN 5930-00-646-2140
NSN 6650-01-195-0006
NSN 5965-01-393-5833
NSN 6135-01-454-9408
NSN 5835-01-199-5902
NSN 6110-00-967-9007
NSN 6320-00-476-6898