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 5920-01-234-8309
NSN 6650-01-137-3278
NSN 5935-01-380-6663
NSN 5935-01-551-0789
NSN 5996-01-547-6638
NSN 6130-00-421-8113
NSN 6145-00-382-6199
NSN 5925-00-706-4582
NSN 6645-01-542-6159
NSN 7035-01-625-0524
NSN 6620-01-210-9002
NSN 5925-01-294-5707