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 5895-01-300-9569
NSN 6110-00-188-9874
NSN 6145-01-099-2682
NSN 5905-01-274-9031
NSN 6130-01-135-3750
NSN 6650-01-252-8190
NSN 5915-00-765-6969
NSN 5999-01-548-1280
NSN 5990-01-384-2697
NSN 5965-01-026-9865
NSN 6135-01-633-8502
NSN 6145-01-518-4956