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 7035-00-104-7613
NSN 5950-00-613-8561
NSN 6130-01-440-9792
NSN 5998-01-628-9694
NSN 5920-01-463-8484
NSN 2925-01-612-0405
NSN 5996-00-348-2689
NSN 5935-00-953-1582
NSN 6645-00-350-8070
NSN 6650-01-545-5672
NSN 5835-00-752-6065
NSN 5905-00-008-6543