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 7035-01-633-9537
NSN 6620-01-523-0713
NSN 5915-01-530-3013
NSN 5895-01-177-6637
NSN 5999-00-110-3383
NSN 5998-00-952-2788
NSN 5999-00-929-4963
NSN 6620-01-106-2814
NSN 5855-00-484-4856
NSN 5998-01-142-5801
NSN 5950-01-313-9822
NSN 6150-01-200-9233