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 6145-00-406-4471
NSN 6105-01-434-3032
NSN 7035-01-558-2976
NSN 5960-01-598-9072
NSN 6105-01-414-5526
NSN 5998-01-474-5238
NSN 6220-00-157-5009
NSN 6145-01-643-5873
NSN 6105-01-310-2626
NSN 6105-01-276-6774
NSN 5998-01-375-5360
NSN 5935-01-144-5634