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 5950-00-474-3842
NSN 6130-00-483-9323
NSN 6320-01-039-5891
NSN 5915-00-602-0002
NSN 6150-01-328-8604
NSN 6145-00-936-0083
NSN 5855-01-300-2301
NSN 6130-01-574-6579
NSN 6320-00-405-2348
NSN 6620-01-243-5281
NSN 5925-01-462-6792
NSN 5999-01-214-4205