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 4140-01-607-0488
NSN 7035-00-117-0418
NSN 6685-01-394-4984
NSN 6220-01-108-5108
NSN 5998-00-632-3063
NSN 6320-01-116-3980
NSN 6240-00-168-0411
NSN 6150-01-135-0156
NSN 5965-01-355-7164
NSN 6110-01-435-7583
NSN 6105-01-209-4866
NSN 5910-01-115-2536