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 5999-00-946-5652
NSN 6145-01-567-8789
NSN 5999-01-023-3158
NSN 6645-00-269-8440
NSN 4140-01-345-7808
NSN 6645-01-155-9449
NSN 5935-01-137-0182
NSN 5935-01-601-7607
NSN 5835-01-399-5820
NSN 2925-01-556-0333
NSN 2925-01-299-6967
NSN 5945-01-467-9886