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 6685-01-435-7618
NSN 6150-01-088-3805
NSN 5950-00-337-6360
NSN 5965-01-258-1988
NSN 6145-00-284-1514
NSN 6650-00-122-1109
NSN 5920-01-181-6776
NSN 6150-01-019-5734
NSN 5950-01-648-0061
NSN 5945-01-583-7340
NSN 5925-01-579-3744
NSN 5855-01-042-7990