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 6650-01-282-3025
NSN 5985-01-007-5062
NSN 6240-00-126-4551
NSN 5930-00-845-6284
NSN 5998-00-538-2080
NSN 5930-00-339-8637
NSN 5965-00-163-1791
NSN 6240-01-624-8924
NSN 6320-01-192-0332
NSN 6110-01-203-0572
NSN 5945-01-627-8308
NSN 5996-00-872-3637