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 5925-01-091-1253
NSN 6650-00-527-8822
NSN 5998-01-443-4028
NSN 5935-01-115-3506
NSN 7035-01-366-5912
NSN 5855-01-550-2780
NSN 5998-01-222-1017
NSN 5998-00-904-7610
NSN 6135-01-549-9135
NSN 5930-01-327-3584
NSN 6220-01-568-0844
NSN 5996-01-049-7871