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 6105-01-479-3404
NSN 6135-00-276-7625
NSN 6620-01-270-8364
NSN 5999-00-632-2698
NSN 5895-01-300-5766
NSN 5985-01-660-0469
NSN 6105-01-170-5420
NSN 5905-00-388-6346
NSN 5895-01-112-8403
NSN 6130-01-299-1185
NSN 5915-01-214-1835
NSN 6145-01-557-8117