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 6130-01-257-4098
NSN 5935-01-128-1474
NSN 6685-01-269-5240
NSN 5950-01-015-7101
NSN 5999-00-258-7838
NSN 6110-01-277-4595
NSN 5915-00-828-0760
NSN 5925-01-590-2513
NSN 5950-00-007-1928
NSN 5965-01-590-8085
NSN 5965-01-600-0566
NSN 5990-01-322-9781