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 6685-00-397-2115
NSN 6645-01-298-4662
NSN 6685-00-174-7832
NSN 6145-01-426-6657
NSN 5950-01-634-0677
NSN 5960-01-003-8480
NSN 6145-00-606-1934
NSN 6220-01-392-6667
NSN 2925-01-106-8871
NSN 6150-00-317-5498
NSN 5990-01-172-4553
NSN 5915-00-900-3369