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 6145-01-497-7843
NSN 5920-01-425-2336
NSN 6650-00-590-9073
NSN 5855-01-180-5369
NSN 6650-01-386-1300
NSN 6240-01-451-1409
NSN 6145-01-205-5184
NSN 5960-01-033-0813
NSN 5920-00-936-3952
NSN 6685-01-223-1978
NSN 6320-01-207-9038
NSN 5905-00-827-0302