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 5895-01-556-1208
NSN 5950-00-139-2942
NSN 6150-00-127-7816
NSN 5835-00-196-9771
NSN 6130-00-719-7219
NSN 5910-01-534-7699
NSN 6645-01-391-6492
NSN 6320-01-585-8468
NSN 5998-00-187-1167
NSN 6105-00-194-9945
NSN 5855-00-411-8688
NSN 5925-01-299-3672