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 7035-01-241-2127
NSN 5945-01-414-6454
NSN 5965-01-425-5857
NSN 6110-00-893-2349
NSN 5895-01-278-9131
NSN 2925-01-537-5310
NSN 5998-00-136-5838
NSN 6650-00-224-3223
NSN 5945-00-853-2063
NSN 5990-00-221-0878
NSN 6145-01-396-5647
NSN 6110-01-601-8801