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 5935-00-214-0516
NSN 5930-00-224-6699
NSN 5895-00-494-4386
NSN 5910-01-401-5279
NSN 6620-01-287-1443
NSN 5965-01-596-7631
NSN 5950-00-810-9459
NSN 5935-01-020-2487
NSN 5895-00-291-4873
NSN 6650-01-422-7106
NSN 5915-01-010-3380
NSN 6610-00-124-2876