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 6105-00-079-0044
NSN 6220-00-188-7525
NSN 5985-01-108-4328
NSN 5930-01-528-6950
NSN 6320-01-118-0553
NSN 5915-01-012-1854
NSN 6650-01-642-3866
NSN 5915-00-732-5629
NSN 5935-01-032-4620
NSN 5990-00-518-0684
NSN 5910-00-555-3003
NSN 7035-00-585-2113