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 5996-01-005-1440
NSN 6320-01-470-6826
NSN 5925-01-488-4735
NSN 5935-01-115-2593
NSN 5835-01-422-2399
NSN 5930-01-079-4471
NSN 6130-00-260-1791
NSN 6130-01-113-7566
NSN 5998-01-449-0882
NSN 5925-00-167-1213
NSN 5910-01-081-1266
NSN 5998-01-441-3640