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 6105-00-912-3744
NSN 7035-01-516-6657
NSN 5950-01-446-1106
NSN 5925-00-290-4451
NSN 2925-01-422-9284
NSN 6145-01-382-9287
NSN 6145-00-066-8695
NSN 7035-01-616-8319
NSN 6320-00-925-0558
NSN 4140-01-496-4973
NSN 5950-00-009-8205
NSN 6650-01-437-8852