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 6610-00-260-1181
NSN 5925-00-149-2855
NSN 5975-01-012-2591
NSN 6145-01-523-7322
NSN 5985-01-398-0786
NSN 5925-01-258-4640
NSN 5985-01-470-6463
NSN 6610-01-428-7779
NSN 5975-00-424-3403
NSN 5910-01-442-0881
NSN 6130-00-833-7763
NSN 5915-01-318-2491