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 5945-01-509-6668
NSN 5985-01-102-6537
NSN 5930-01-184-7192
NSN 5985-01-579-4355
NSN 5835-00-454-7239
NSN 6130-00-076-3554
NSN 6645-01-459-9586
NSN 6135-00-567-1322
NSN 6130-01-400-1385
NSN 5935-01-124-0864
NSN 5930-01-605-1152
NSN 6610-01-568-7028