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 6145-00-501-5066
NSN 6650-01-606-2277
NSN 5985-01-004-4356
NSN 7035-00-868-2640
NSN 5990-01-134-7756
NSN 6110-00-598-2574
NSN 6220-00-171-8638
NSN 6105-01-062-3191
NSN 2925-01-109-1518
NSN 5945-01-510-3530
NSN 5996-00-445-8496
NSN 7035-00-523-7492