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 5975-01-086-7926
NSN 5835-01-509-8992
NSN 5935-00-631-4320
NSN 6320-01-195-5583
NSN 5960-01-412-9474
NSN 5910-01-543-2804
NSN 5945-01-594-7192
NSN 5960-01-433-7565
NSN 5930-00-932-3143
NSN 6220-01-269-8391
NSN 6110-00-104-6396
NSN 6110-01-429-9304