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 6610-00-880-5204
NSN 5930-01-535-6976
NSN 5895-00-498-6762
NSN 5935-01-487-4679
NSN 6620-01-461-3550
NSN 5835-01-012-7667
NSN 5855-00-821-7512
NSN 5855-01-013-6864
NSN 2925-01-248-2005
NSN 5915-00-642-9997
NSN 5945-01-323-5366
NSN 5965-00-223-6354