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 6130-01-501-6055
NSN 6645-00-614-5302
NSN 6610-01-177-3732
NSN 4140-01-338-2154
NSN 5998-01-225-4648
NSN 5965-01-495-9711
NSN 5920-01-629-9156
NSN 5920-01-655-0406
NSN 7035-01-583-4016
NSN 5950-01-382-8209
NSN 6135-00-789-2865
NSN 5985-01-303-7568