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 7035-01-501-5938
NSN 5985-00-457-0784
NSN 6220-01-548-0878
NSN 5930-00-420-1385
NSN 5998-01-337-4334
NSN 5925-01-028-9336
NSN 6150-01-483-1857
NSN 6685-01-626-8346
NSN 5945-01-487-3598
NSN 5895-01-397-2767
NSN 5999-01-076-4669
NSN 5930-00-210-3021