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 6620-01-386-5914
NSN 5960-01-617-6345
NSN 6220-00-262-0017
NSN 5998-00-439-1188
NSN 6150-01-222-2806
NSN 6620-00-833-6786
NSN 6130-01-371-0414
NSN 5999-01-023-9417
NSN 5930-01-453-0436
NSN 6220-00-833-3904
NSN 6105-01-056-1314
NSN 5930-01-521-3722