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 5950-01-228-3077
NSN 6685-01-429-0240
NSN 4140-01-246-3090
NSN 5920-01-423-0805
NSN 6610-01-399-1295
NSN 7035-00-421-0298
NSN 4140-01-580-1224
NSN 5945-00-450-6375
NSN 6220-00-044-3553
NSN 6610-01-407-8144
NSN 5930-01-435-6542
NSN 5835-00-433-0170