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 5945-01-359-1405
NSN 5925-00-222-3843
NSN 6150-00-170-8008
NSN 6130-00-352-2317
NSN 6105-00-001-4477
NSN 5960-01-438-0245
NSN 6135-00-491-9864
NSN 5835-01-632-6627
NSN 6145-00-501-5066
NSN 6105-00-146-1568
NSN 5910-01-560-6939
NSN 5930-01-285-7920