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 5965-01-256-0059
NSN 5910-00-793-8131
NSN 5990-01-586-7318
NSN 2925-00-071-4197
NSN 6135-01-469-7574
NSN 6320-00-676-9387
NSN 6220-01-279-6220
NSN 5935-01-351-6159
NSN 7035-01-656-1531
NSN 5985-00-176-1499
NSN 5996-01-213-2335
NSN 6110-00-297-5768