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 5835-00-458-4392
NSN 6240-00-962-0525
NSN 7035-00-104-7613
NSN 5910-00-866-5203
NSN 5945-00-752-1002
NSN 5905-01-079-1347
NSN 6620-00-290-6505
NSN 6240-01-203-4992
NSN 6105-01-642-5645
NSN 5835-01-040-7190
NSN 5835-01-519-2916
NSN 5975-00-960-2571