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 6130-00-938-9361
NSN 6105-01-614-5985
NSN 5895-01-100-3644
NSN 6620-01-350-5103
NSN 5985-01-142-3431
NSN 6110-01-576-6679
NSN 5975-00-174-8121
NSN 5930-00-203-1321
NSN 5835-00-518-4507
NSN 6650-01-475-9763
NSN 5895-00-596-8678
NSN 6135-01-483-1501