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 6650-01-605-4399
NSN 5895-01-195-4674
NSN 5910-01-633-9963
NSN 6135-01-033-3213
NSN 7035-01-442-3987
NSN 5998-00-857-0063
NSN 6650-01-610-0010
NSN 6135-00-134-6648
NSN 6135-01-623-2970
NSN 5915-01-230-8381
NSN 4140-01-390-6348
NSN 5965-01-341-1480