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 5915-01-212-2988
NSN 6320-01-072-2073
NSN 5915-00-372-4522
NSN 5930-01-353-4149
NSN 6650-01-183-0711
NSN 5855-01-255-1688
NSN 7035-00-403-5340
NSN 5960-00-705-5424
NSN 6135-01-514-9327
NSN 4140-00-111-3247
NSN 5999-01-658-3788
NSN 6220-01-150-2936