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 7035-00-267-5424
NSN 5925-00-529-0441
NSN 5915-01-498-1881
NSN 5945-00-088-8789
NSN 5920-00-251-3561
NSN 6150-01-090-1631
NSN 4140-01-360-0719
NSN 5920-01-578-4986
NSN 7035-00-054-3414
NSN 5835-01-397-8801
NSN 6145-00-517-6666
NSN 5920-01-048-0766