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 5895-00-389-7400
NSN 6320-00-284-1524
NSN 6610-00-402-6856
NSN 6105-01-086-2688
NSN 6105-01-154-6960
NSN 6145-01-211-6591
NSN 5920-01-441-2481
NSN 6110-00-815-5956
NSN 6240-01-057-5822
NSN 6105-01-502-8831
NSN 6150-01-584-0098
NSN 6150-01-119-2144