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 6220-01-499-4750
NSN 5905-00-151-6653
NSN 5965-00-636-4926
NSN 6130-01-013-9343
NSN 6240-01-476-7357
NSN 6610-00-822-0431
NSN 5950-01-633-8819
NSN 5910-01-147-6084
NSN 5999-01-452-4711
NSN 5930-01-355-5864
NSN 6105-01-359-7843
NSN 5935-00-078-8593