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 5935-01-035-5358
NSN 6620-01-219-9413
NSN 7035-01-022-5763
NSN 5905-00-724-6049
NSN 6145-00-471-3975
NSN 5915-00-353-0853
NSN 6135-00-377-9165
NSN 6650-00-962-3568
NSN 6130-00-277-7321
NSN 6620-01-395-5214
NSN 5960-01-507-9112
NSN 6685-01-474-2254