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 6130-01-114-9999
NSN 5965-01-648-2590
NSN 5965-01-344-5467
NSN 6150-01-605-1563
NSN 5835-00-341-5441
NSN 5920-01-553-5410
NSN 5895-00-878-6760
NSN 6645-00-503-1379
NSN 5920-00-142-9993
NSN 5855-01-547-5118
NSN 6645-01-222-5302
NSN 5935-00-477-9687