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 2925-00-994-8684
NSN 6320-01-406-6098
NSN 5915-00-952-0594
NSN 7035-01-654-5825
NSN 5945-01-432-0716
NSN 5935-01-136-9538
NSN 5985-01-214-9843
NSN 7035-00-252-7467
NSN 5965-00-261-8086
NSN 5999-00-553-9831
NSN 5920-01-451-5175
NSN 5935-01-477-6092