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 5996-00-780-5269
NSN 5996-00-079-0384
NSN 5975-00-583-6091
NSN 5998-00-063-5050
NSN 6610-01-286-3079
NSN 5915-01-280-5463
NSN 5915-00-009-8251
NSN 5975-01-262-1948
NSN 5895-01-217-3671
NSN 6645-01-062-0905
NSN 6145-01-560-7233
NSN 5910-00-562-0428