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 7035-01-586-2177
NSN 5965-01-557-4653
NSN 2925-01-125-9169
NSN 6685-01-357-1561
NSN 6650-01-554-2824
NSN 7035-00-931-9415
NSN 2925-00-869-6967
NSN 5960-01-226-0342
NSN 5935-01-322-4929
NSN 5999-00-939-9342
NSN 7035-01-391-7470
NSN 5965-01-050-4133