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 6610-00-244-2816
NSN 5996-00-252-6722
NSN 4140-00-224-2133
NSN 5990-00-344-2062
NSN 5925-01-089-6970
NSN 5905-01-237-4654
NSN 5996-00-904-8350
NSN 5985-01-383-6988
NSN 5915-01-065-1127
NSN 5999-00-126-7160
NSN 5965-00-783-8239
NSN 5835-00-244-4956