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 6135-00-455-2425
NSN 6620-01-420-1735
NSN 5920-01-423-6274
NSN 7035-00-803-3056
NSN 5925-01-119-1103
NSN 6650-00-573-7131
NSN 5998-00-161-0636
NSN 5935-01-092-1630
NSN 5990-01-244-9998
NSN 6650-00-968-5700
NSN 6610-00-186-3433
NSN 5996-01-159-9089