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 5895-01-031-5071
NSN 5920-01-632-2078
NSN 5999-01-460-4368
NSN 7035-01-236-5743
NSN 6620-01-169-2406
NSN 5960-01-515-4791
NSN 6685-00-634-9964
NSN 6620-01-649-5570
NSN 6105-00-275-0826
NSN 5965-01-482-4352
NSN 4140-00-146-3269
NSN 5990-00-756-0215