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 6105-00-255-5927
NSN 6145-00-414-5315
NSN 6240-01-044-0073
NSN 2925-00-844-2789
NSN 5935-00-930-8890
NSN 6105-01-474-8797
NSN 6620-01-203-4369
NSN 5950-00-867-1265
NSN 5935-01-414-8599
NSN 5985-00-262-0823
NSN 6650-01-313-3839
NSN 5915-01-109-5801