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 5965-01-025-4547
NSN 5895-00-116-6164
NSN 5950-00-661-2612
NSN 6150-01-654-7095
NSN 5965-00-285-0745
NSN 6150-01-491-7020
NSN 5930-00-199-0237
NSN 7035-01-016-4587
NSN 6130-01-120-0971
NSN 6130-00-518-1884
NSN 5925-01-594-1873
NSN 6220-01-205-7687