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 5895-01-253-4031
NSN 7035-00-703-3535
NSN 6135-01-465-0829
NSN 5835-01-408-0621
NSN 6240-00-195-6308
NSN 5960-01-298-0254
NSN 5910-01-139-5085
NSN 5910-01-202-2101
NSN 6135-00-128-1633
NSN 5895-01-519-9373
NSN 5935-00-519-0281
NSN 5855-00-944-0949