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 5905-01-489-7053
NSN 6620-00-399-0087
NSN 6645-01-462-3078
NSN 6610-01-513-0303
NSN 5910-01-045-2918
NSN 6685-00-304-8675
NSN 6685-01-321-6894
NSN 6320-01-082-2970
NSN 5945-00-601-5628
NSN 6240-01-418-2606
NSN 5920-01-576-8094
NSN 6110-00-466-1674