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 6610-00-485-6653
NSN 6610-01-476-7412
NSN 6105-01-147-7768
NSN 6610-00-290-0758
NSN 5910-00-959-5209
NSN 6135-00-519-1325
NSN 6150-01-659-5138
NSN 6150-01-209-2673
NSN 4140-00-912-1904
NSN 6645-00-124-9939
NSN 6145-01-071-5868
NSN 5998-01-468-3137