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 6320-01-560-7177
NSN 6610-00-104-7518
NSN 2925-01-519-1707
NSN 5915-00-462-2878
NSN 6320-01-501-7935
NSN 5945-01-535-6961
NSN 5915-01-562-6856
NSN 5965-00-280-8506
NSN 6150-01-598-8860
NSN 5945-01-164-8241
NSN 6320-01-202-8761
NSN 5965-01-094-6602