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 5935-01-194-8656
NSN 5960-00-192-4503
NSN 5855-00-004-0904
NSN 6645-00-542-1206
NSN 5965-00-199-4456
NSN 7035-01-422-4642
NSN 7035-00-968-4848
NSN 6220-01-104-5075
NSN 5996-00-336-3046
NSN 6145-00-519-2821
NSN 5945-01-298-8473
NSN 5960-00-236-3980