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 5996-01-208-3265
NSN 5999-00-150-8792
NSN 5990-01-188-7309
NSN 5945-00-928-8307
NSN 6220-01-361-9295
NSN 5965-00-050-5456
NSN 5930-01-576-3108
NSN 5935-01-488-7283
NSN 5930-00-420-7279
NSN 5996-01-513-6015
NSN 6110-00-123-1793
NSN 6645-00-319-8498