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 5945-00-959-5392
NSN 6220-01-375-2437
NSN 5950-00-039-5788
NSN 6610-01-007-0268
NSN 5930-01-314-4080
NSN 5999-01-552-4380
NSN 6105-00-087-0402
NSN 6320-01-425-1417
NSN 5975-01-523-4600
NSN 6220-01-447-7841
NSN 5910-00-276-8592
NSN 6110-01-367-2165