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 7035-01-076-4067
NSN 5965-00-926-2591
NSN 6130-01-502-8006
NSN 5935-00-187-2193
NSN 6645-00-300-0401
NSN 5998-01-467-5151
NSN 6240-01-101-4413
NSN 6645-01-447-4139
NSN 6650-01-146-5000
NSN 6320-01-019-1028
NSN 5999-01-109-0661
NSN 5990-01-646-8048