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 6645-01-355-7334
NSN 6150-01-634-0575
NSN 5910-01-167-8593
NSN 6135-00-057-2005
NSN 5996-00-587-7311
NSN 6220-01-628-1755
NSN 5920-00-116-9368
NSN 6610-01-156-0810
NSN 5975-01-231-9669
NSN 5965-01-360-6568
NSN 6150-01-069-3167
NSN 6145-00-275-4046