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 6110-01-278-3153
NSN 5910-00-846-1302
NSN 6130-01-223-8466
NSN 6220-00-358-9580
NSN 5910-00-905-2962
NSN 5960-00-069-7638
NSN 5835-00-868-8815
NSN 6320-00-894-1644
NSN 7035-01-368-1070
NSN 6150-00-157-5988
NSN 6650-01-325-2597
NSN 6645-01-330-6028