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 5996-00-482-1170
NSN 5910-00-023-4745
NSN 6135-01-471-7325
NSN 5965-00-913-9545
NSN 6110-01-174-8414
NSN 6620-00-953-8570
NSN 6220-00-610-0968
NSN 6645-00-292-5053
NSN 6220-01-640-6930
NSN 5950-01-077-4521
NSN 5998-01-206-4672
NSN 6150-01-571-2505