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 5945-01-566-7355
NSN 6105-00-222-6194
NSN 2925-01-462-1620
NSN 6685-01-227-5471
NSN 5925-01-395-1971
NSN 5950-01-259-3770
NSN 6685-01-481-2128
NSN 6240-01-581-2000
NSN 2925-01-029-5300
NSN 7035-00-117-0418
NSN 6130-00-629-8703
NSN 6110-01-508-4968