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 5945-01-269-7919
NSN 5835-01-589-4735
NSN 5945-00-879-0815
NSN 5935-00-244-8154
NSN 5975-01-429-9503
NSN 6110-01-605-2450
NSN 6135-01-218-3660
NSN 6145-01-533-7376
NSN 5990-00-477-1362
NSN 7035-01-495-7134
NSN 6620-01-512-2016
NSN 5855-01-302-9778