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 6620-00-596-1951
NSN 5999-01-225-8867
NSN 5945-01-578-8413
NSN 5915-01-024-1917
NSN 6220-01-112-6919
NSN 6610-01-652-6794
NSN 5855-01-375-2152
NSN 6150-00-199-7327
NSN 5905-01-403-2806
NSN 5975-00-082-0894
NSN 5930-00-775-0916
NSN 5915-01-606-4386