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 6645-01-265-0648
NSN 5835-01-397-8801
NSN 2925-01-547-4565
NSN 5905-00-204-9535
NSN 5905-00-594-8102
NSN 6150-01-607-0663
NSN 5855-00-763-2155
NSN 6130-01-181-5475
NSN 5985-01-556-4421
NSN 5965-01-415-2898
NSN 5895-01-533-2108
NSN 5996-01-414-1685