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 2925-01-043-9786
NSN 5895-00-595-6803
NSN 6135-01-447-3086
NSN 5905-00-791-9151
NSN 5960-01-014-8073
NSN 6105-01-535-0308
NSN 5915-01-069-0453
NSN 5945-00-549-8508
NSN 5915-01-485-3838
NSN 6240-01-562-6938
NSN 5996-00-269-0552
NSN 5935-00-907-9235