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 6685-01-248-1707
NSN 5935-01-359-2065
NSN 6135-01-573-2428
NSN 5895-00-576-0716
NSN 5930-01-558-9836
NSN 6610-00-224-4252
NSN 6650-00-614-1711
NSN 5915-01-614-8852
NSN 5960-00-809-7852
NSN 5905-01-634-0595
NSN 5855-01-542-9059
NSN 2925-01-157-9204