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 7035-00-517-8232
NSN 5855-01-508-3152
NSN 6145-01-628-9214
NSN 5925-01-340-9880
NSN 5960-01-495-0859
NSN 6135-01-022-5427
NSN 5996-01-429-0390
NSN 5935-00-462-5712
NSN 5985-01-441-8471
NSN 6620-00-171-4035
NSN 5935-01-371-9458
NSN 5960-01-543-0235