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 6610-00-934-1044
NSN 6105-01-171-1473
NSN 6240-00-845-9098
NSN 5965-00-080-2045
NSN 6610-01-050-3075
NSN 6685-01-438-2946
NSN 6135-00-405-1989
NSN 5965-01-089-8579
NSN 6650-01-399-0628
NSN 5960-01-385-4333
NSN 5935-00-433-4124
NSN 5935-01-559-8227