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 5965-01-275-5472
NSN 6320-00-578-6898
NSN 6145-01-194-0784
NSN 5945-01-451-3501
NSN 6610-01-206-3921
NSN 6240-01-283-7824
NSN 5920-01-231-9175
NSN 5925-01-620-3122
NSN 5998-01-623-6491
NSN 5910-01-432-1980
NSN 6130-01-246-7321
NSN 2925-01-587-3956