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 5895-01-541-8451
NSN 5855-00-079-2370
NSN 6610-00-606-8597
NSN 5855-01-118-6001
NSN 6135-01-048-0910
NSN 6130-01-320-7552
NSN 5998-01-483-3545
NSN 5965-01-568-0966
NSN 5930-01-489-0954
NSN 6650-00-480-9135
NSN 5915-00-233-6346
NSN 5965-01-217-7167