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 5996-01-306-2076
NSN 5999-01-634-0576
NSN 5915-00-221-2007
NSN 5945-01-384-6801
NSN 5910-01-539-4584
NSN 5985-01-116-2147
NSN 5910-01-142-3373
NSN 4140-00-036-6447
NSN 5925-01-134-6208
NSN 5985-01-381-1155
NSN 6620-01-426-2220
NSN 5915-00-702-5905