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 5996-00-842-2023
NSN 6620-00-246-5159
NSN 6650-00-205-6282
NSN 5920-01-205-2826
NSN 6105-00-140-6864
NSN 5935-00-080-9698
NSN 5910-00-660-9464
NSN 5905-01-202-1396
NSN 5950-01-418-6958
NSN 5925-01-557-1389
NSN 5985-00-794-1358
NSN 5835-00-550-7728