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 5998-00-262-4879
NSN 5998-00-019-0861
NSN 7035-01-590-2302
NSN 6645-01-577-7932
NSN 6110-01-221-3914
NSN 5915-00-244-9805
NSN 6320-00-116-3658
NSN 6150-01-645-4791
NSN 6645-01-471-4960
NSN 5965-01-173-9106
NSN 5935-00-471-9236
NSN 5996-01-288-5955