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 5998-01-333-9354
NSN 6645-00-230-4396
NSN 5990-01-602-6701
NSN 6105-01-359-3886
NSN 5996-01-344-2160
NSN 5915-00-225-1794
NSN 5895-01-547-3218
NSN 5945-01-092-9951
NSN 5910-01-503-1857
NSN 6135-01-017-3001
NSN 6135-01-329-6022
NSN 6610-01-604-1744