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 5965-01-501-5638
NSN 5945-01-247-7414
NSN 5965-01-086-0081
NSN 6320-01-098-2503
NSN 5950-00-222-4745
NSN 6320-01-583-6809
NSN 5999-01-167-5463
NSN 6620-00-104-5677
NSN 6320-00-225-7013
NSN 6110-00-202-1021
NSN 7035-01-528-6900
NSN 5915-00-479-8100