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 6220-00-232-9706
NSN 5996-01-315-3002
NSN 5975-01-166-2399
NSN 5985-01-283-3322
NSN 6150-00-922-6893
NSN 6110-01-357-6357
NSN 6610-01-421-5367
NSN 5960-01-144-9183
NSN 5935-00-552-1828
NSN 7035-01-517-8663
NSN 4140-01-634-0330
NSN 5965-01-375-5238