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 5835-00-830-6416
NSN 6110-01-261-4980
NSN 5975-01-523-7756
NSN 5975-00-096-2665
NSN 5920-00-111-2375
NSN 5985-00-251-8193
NSN 6650-01-053-8726
NSN 6145-01-205-5936
NSN 6240-00-740-8901
NSN 5975-00-849-6717
NSN 6150-00-940-8846
NSN 5960-00-201-5265