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 5996-00-222-6049
NSN 5960-01-214-0951
NSN 6645-01-632-2272
NSN 5965-00-845-6325
NSN 5985-01-293-6571
NSN 6620-00-079-0311
NSN 5960-01-262-5048
NSN 6645-00-143-1567
NSN 5910-01-583-4482
NSN 7035-01-400-3666
NSN 5998-01-607-2683
NSN 4140-00-064-7847