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 5996-00-191-2133
NSN 6620-00-071-3895
NSN 5910-01-444-1239
NSN 5920-01-226-5792
NSN 6135-01-423-7502
NSN 4140-01-520-8920
NSN 6150-01-443-0459
NSN 6610-00-239-8613
NSN 6240-01-289-7570
NSN 6650-01-021-1355
NSN 6610-00-184-0833
NSN 5960-01-066-4771