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 5960-01-399-4327
NSN 5855-00-532-0025
NSN 5975-00-274-5720
NSN 5965-01-649-9293
NSN 6610-01-173-5352
NSN 5835-00-986-5985
NSN 5930-00-822-1846
NSN 6650-01-047-6719
NSN 5990-01-646-8048
NSN 6110-01-506-0105
NSN 6220-01-420-5516
NSN 5985-00-075-5729