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 2925-00-831-7024
NSN 6150-00-092-9134
NSN 6145-01-096-2505
NSN 6150-01-420-6811
NSN 5965-01-608-6037
NSN 6610-01-269-5437
NSN 5935-00-643-7896
NSN 6610-01-318-6713
NSN 6240-00-170-5302
NSN 5960-01-503-8411
NSN 6130-00-839-3227
NSN 6145-00-735-1799