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 6135-00-297-8873
NSN 5905-00-228-5615
NSN 6620-00-210-8406
NSN 5910-00-371-2951
NSN 5945-01-161-4615
NSN 2925-01-535-3167
NSN 6620-00-961-8643
NSN 6685-01-086-0246
NSN 5985-01-630-4021
NSN 5915-01-316-2323
NSN 5999-01-364-0277
NSN 6220-00-541-8515