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 6320-01-352-5653
NSN 5945-00-362-0188
NSN 5915-01-603-0012
NSN 6320-01-181-9474
NSN 5985-01-211-6549
NSN 5999-00-409-4505
NSN 5975-00-106-6145
NSN 6105-01-579-3695
NSN 5945-01-433-2797
NSN 5925-01-442-8589
NSN 6220-01-453-2801
NSN 5965-01-282-3181