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 6130-00-124-4986
NSN 6320-01-281-6028
NSN 6645-01-180-6219
NSN 6105-01-443-5665
NSN 6650-01-145-5173
NSN 6130-01-292-3835
NSN 5998-01-633-3311
NSN 5965-00-252-6014
NSN 5960-01-477-7632
NSN 6135-00-175-7132
NSN 5935-00-983-5291
NSN 5915-01-057-5029