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 6685-00-215-8894
NSN 5998-00-326-7362
NSN 7035-01-068-1096
NSN 2925-01-161-7440
NSN 5945-00-118-1103
NSN 6320-01-631-7828
NSN 6110-01-325-1884
NSN 5920-01-535-0796
NSN 6240-01-654-7974
NSN 5998-01-659-0424
NSN 6685-00-430-0708
NSN 5895-01-566-9276