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 7035-01-278-1379
NSN 5950-00-811-8108
NSN 5905-01-550-0096
NSN 5975-01-616-7400
NSN 5905-00-525-4653
NSN 5950-00-895-1185
NSN 6320-01-415-0953
NSN 5855-01-143-4470
NSN 5935-01-258-9170
NSN 5925-00-781-0878
NSN 5835-01-553-6772
NSN 5960-01-599-9821