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 5915-00-584-3512
NSN 5835-01-079-8865
NSN 5960-01-075-5861
NSN 5985-01-531-5742
NSN 5935-01-224-6228
NSN 6105-00-642-2056
NSN 6620-01-445-4295
NSN 5920-01-363-5638
NSN 6130-01-650-2460
NSN 6685-00-015-1822
NSN 5935-00-596-0756
NSN 5996-01-371-2958