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 5985-01-524-3898
NSN 6610-01-212-4022
NSN 5975-00-137-2836
NSN 5905-01-557-9584
NSN 2925-01-288-2091
NSN 6320-01-117-5516
NSN 6240-01-123-0968
NSN 5895-00-543-1584
NSN 7035-00-541-8516
NSN 6220-01-401-5337
NSN 6685-01-436-9881
NSN 5999-01-055-2091