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 6685-00-753-7668
NSN 5996-01-099-1188
NSN 6130-00-513-3565
NSN 6320-01-576-6310
NSN 4140-00-616-1347
NSN 6320-01-618-7800
NSN 6650-00-879-5834
NSN 5950-00-090-9549
NSN 6150-01-028-3350
NSN 5910-01-335-9876
NSN 6150-01-616-1939
NSN 5835-00-630-2775