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 5935-01-403-2844
NSN 6320-01-265-0665
NSN 5855-01-492-9795
NSN 5996-01-323-7763
NSN 5985-01-186-7345
NSN 6240-01-280-9739
NSN 6320-00-731-6134
NSN 5905-01-429-4078
NSN 5975-01-183-8797
NSN 5930-00-973-5769
NSN 5975-00-644-0845
NSN 6320-00-382-7825