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 6220-01-513-7789
NSN 5996-01-422-3087
NSN 7035-01-176-4857
NSN 6220-01-195-0322
NSN 5935-01-634-0668
NSN 5960-01-025-2526
NSN 6220-01-197-7680
NSN 5990-00-501-4994
NSN 5915-01-086-5668
NSN 5996-01-009-8855
NSN 5905-01-243-8890
NSN 5930-01-213-3802