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 6150-01-003-7806
NSN 6645-01-505-5772
NSN 6320-01-278-2359
NSN 5905-01-232-5085
NSN 5910-01-364-0513
NSN 6110-01-106-4440
NSN 6610-01-112-6839
NSN 5950-01-369-0823
NSN 6610-01-563-8223
NSN 6135-01-642-6830
NSN 5895-01-257-1029
NSN 5985-01-443-7544