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 5945-00-213-0101
NSN 5998-00-153-9989
NSN 6145-00-114-0197
NSN 6320-00-082-5868
NSN 5998-00-074-3991
NSN 5930-00-110-1670
NSN 6130-00-285-8119
NSN 5945-01-155-7713
NSN 5930-01-606-2139
NSN 2925-01-368-5773
NSN 5935-01-389-7510
NSN 6610-00-753-2281