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 5945-01-235-0525
NSN 7035-01-287-9817
NSN 6240-00-134-2085
NSN 5910-01-316-1981
NSN 5990-01-328-9846
NSN 5905-00-351-1630
NSN 5945-01-141-7017
NSN 6130-01-279-7941
NSN 5985-01-418-3831
NSN 5910-01-340-3079
NSN 5930-01-626-6526
NSN 6110-01-265-1080