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 6320-01-362-9518
NSN 6105-00-153-7967
NSN 6685-01-328-4012
NSN 5905-01-351-0685
NSN 5998-00-535-3439
NSN 6220-00-654-7362
NSN 6110-01-288-9919
NSN 7035-01-647-8664
NSN 6145-00-492-0639
NSN 6145-00-019-0047
NSN 4140-01-318-1523
NSN 7035-01-469-0109