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 5996-00-448-1245
NSN 6130-00-586-7173
NSN 5945-01-292-8243
NSN 2925-00-008-5485
NSN 5996-01-226-0606
NSN 6620-01-028-6374
NSN 5935-00-740-2207
NSN 5895-00-515-6368
NSN 6150-00-526-3720
NSN 5945-01-085-4825
NSN 5960-00-936-3334
NSN 5998-01-082-5628