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 6130-00-949-1230
NSN 6610-00-786-0696
NSN 5905-01-024-1822
NSN 5935-01-303-5987
NSN 6645-01-260-7426
NSN 6610-00-161-0680
NSN 6110-01-215-5756
NSN 5950-01-641-0877
NSN 5996-00-969-9882
NSN 7035-01-523-5550
NSN 5960-01-399-4327
NSN 6650-01-472-3955