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 6130-01-224-7162
NSN 5960-01-212-8118
NSN 6620-01-179-7259
NSN 2925-00-167-6762
NSN 5960-01-452-1907
NSN 5835-01-519-3834
NSN 6105-01-091-8181
NSN 5999-00-850-1373
NSN 6240-00-615-8978
NSN 6650-00-705-0269
NSN 6130-01-275-2174
NSN 5915-01-510-2296