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 5895-01-488-9778
NSN 5960-01-381-2478
NSN 5915-01-225-5299
NSN 6610-01-447-5598
NSN 6320-01-054-3046
NSN 6685-00-272-2267
NSN 5925-00-205-2767
NSN 5910-00-203-0566
NSN 5835-00-406-8460
NSN 2925-01-244-3016
NSN 2925-01-660-0669
NSN 5965-01-331-1644