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 6650-01-392-6076
NSN 5905-01-654-8545
NSN 5910-01-352-3338
NSN 5910-01-631-1673
NSN 6685-01-615-9485
NSN 6610-00-216-4849
NSN 6320-00-174-1362
NSN 5925-00-241-1441
NSN 5975-00-785-6394
NSN 5935-01-211-6851
NSN 5925-00-122-3247
NSN 6130-01-043-6786