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 7035-01-496-9069
NSN 5960-01-272-9600
NSN 5999-00-390-5974
NSN 2925-00-471-1128
NSN 5935-01-138-6760
NSN 6145-01-312-0845
NSN 5925-01-202-0131
NSN 5999-01-466-0044
NSN 6150-01-634-0575
NSN 6145-01-504-3785
NSN 5945-01-448-6007
NSN 5945-00-433-8081