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 6685-00-552-8380
NSN 6135-00-100-8890
NSN 5905-01-412-4771
NSN 5985-00-827-1061
NSN 7035-01-629-3266
NSN 5835-01-618-7621
NSN 5935-00-258-8947
NSN 5999-00-415-2985
NSN 6610-01-178-5435
NSN 5930-01-564-5974
NSN 2925-01-101-4655
NSN 5920-01-491-7008