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 7035-00-055-9778
NSN 2925-01-543-0073
NSN 6130-01-308-6774
NSN 6240-01-377-5503
NSN 5935-01-412-1305
NSN 6620-00-189-0967
NSN 6320-01-072-2073
NSN 6220-01-059-1393
NSN 6220-01-480-6867
NSN 2925-00-956-3848
NSN 5915-01-252-6912
NSN 5998-01-324-8060