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 5835-01-626-9603
NSN 6620-01-296-0873
NSN 5930-01-158-7184
NSN 7035-01-368-4801
NSN 5895-01-136-0817
NSN 4140-00-890-6447
NSN 6645-00-491-0462
NSN 5915-00-035-8590
NSN 6645-01-342-1917
NSN 6650-01-578-3159
NSN 5945-00-167-1529
NSN 6145-00-156-4394