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 5990-01-272-4091
NSN 6650-00-736-8456
NSN 5835-01-446-6065
NSN 5920-01-286-1215
NSN 6240-01-448-4079
NSN 6685-01-484-1485
NSN 6150-01-175-5905
NSN 5975-00-397-3713
NSN 6650-01-116-5856
NSN 7035-01-305-1950
NSN 5999-01-235-6844
NSN 6220-00-510-7899