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 6105-00-283-2849
NSN 5915-00-089-9519
NSN 5935-01-207-0938
NSN 6620-00-193-0518
NSN 5975-01-429-0022
NSN 6105-00-119-0135
NSN 6650-01-453-8594
NSN 5925-00-335-8727
NSN 6240-01-456-5413
NSN 6130-01-243-0983
NSN 5950-01-279-9041
NSN 5895-01-605-1317