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 5835-01-454-2674
NSN 6130-00-721-4156
NSN 6620-00-553-8988
NSN 5935-00-813-1966
NSN 6150-01-511-6762
NSN 7035-01-539-1600
NSN 5925-01-261-1677
NSN 5960-01-027-7252
NSN 5945-00-445-0921
NSN 6220-01-619-8133
NSN 5935-01-158-9165
NSN 2925-01-604-8984