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 5855-01-092-7755
NSN 6650-01-053-8726
NSN 6650-01-412-8471
NSN 5915-00-064-4226
NSN 6135-00-856-1343
NSN 5855-00-862-3345
NSN 5950-01-319-8129
NSN 6105-01-202-8878
NSN 5895-01-207-0753
NSN 5910-01-248-9539
NSN 5935-01-634-0668
NSN 6130-00-660-8983