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 6130-01-634-0603
NSN 7035-01-385-7306
NSN 6145-00-462-2364
NSN 6620-00-038-5343
NSN 6240-01-386-8408
NSN 6620-01-606-8964
NSN 5998-00-900-5603
NSN 5915-01-043-3513
NSN 6320-00-725-0754
NSN 5905-00-363-9689
NSN 5925-01-656-2370
NSN 2925-01-089-4176