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 6130-01-474-5985
NSN 6110-01-464-8461
NSN 6105-01-331-6868
NSN 7035-01-610-3006
NSN 6645-00-595-5431
NSN 5855-01-496-2355
NSN 6610-00-170-6715
NSN 6320-00-036-3688
NSN 6110-01-457-2920
NSN 6135-00-583-3966
NSN 6645-00-099-6913
NSN 6220-01-351-3835