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 7035-01-224-5165
NSN 5935-00-958-6698
NSN 5915-00-258-4398
NSN 6610-01-356-3435
NSN 6240-01-343-3022
NSN 5855-00-231-7790
NSN 7035-01-571-8784
NSN 6650-01-207-2905
NSN 6105-00-149-7956
NSN 5935-01-254-2072
NSN 5920-00-981-5821
NSN 5910-01-449-1761