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 5998-01-275-7241
NSN 5960-01-431-4291
NSN 5950-01-429-1014
NSN 5935-00-783-4793
NSN 6645-01-036-5027
NSN 5950-01-634-0677
NSN 6650-01-500-8561
NSN 6145-01-414-5011
NSN 5985-00-015-6301
NSN 6685-00-594-4796
NSN 2925-01-068-3844
NSN 6150-00-705-0302