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 6130-01-105-7021
NSN 6650-00-031-8467
NSN 5915-01-555-8081
NSN 5975-01-332-0443
NSN 5998-01-116-2639
NSN 5920-00-952-1374
NSN 6620-01-298-8708
NSN 6320-01-544-2799
NSN 5915-00-099-0347
NSN 6320-01-322-8340
NSN 6110-01-568-1300
NSN 5965-01-064-2107