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 6105-00-681-1692
NSN 6145-01-160-6885
NSN 5960-01-255-5580
NSN 5895-01-468-5582
NSN 5975-01-083-5603
NSN 5975-01-578-6278
NSN 6240-01-258-6298
NSN 5925-01-535-7849
NSN 6130-00-231-9443
NSN 6240-00-891-1508
NSN 5965-00-360-9534
NSN 5998-01-065-7847