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 5910-00-845-3690
NSN 6130-00-925-2303
NSN 5855-01-003-0848
NSN 6685-00-284-1070
NSN 6150-01-370-8580
NSN 6620-01-378-1366
NSN 2925-00-553-8799
NSN 5905-00-516-2871
NSN 6130-01-009-4290
NSN 5965-00-153-5216
NSN 5965-01-017-5463
NSN 5915-01-190-2346