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 6145-01-553-0589
NSN 5855-00-631-4565
NSN 6110-01-378-6659
NSN 5985-01-381-2563
NSN 5920-01-289-7075
NSN 6320-00-149-7570
NSN 6135-01-542-5902
NSN 6220-01-175-9052
NSN 6620-01-601-4314
NSN 6645-01-515-7507
NSN 5990-01-254-3197
NSN 5950-01-071-8632