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 7035-01-364-0286
NSN 5996-01-147-6054
NSN 5935-01-076-0126
NSN 6645-01-352-0886
NSN 5935-01-573-7519
NSN 5990-00-058-4514
NSN 5895-01-521-4033
NSN 5965-00-820-0469
NSN 6620-01-495-3536
NSN 5975-01-446-5449
NSN 5910-00-477-1707
NSN 6150-01-211-6009