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 6610-01-010-4516
NSN 5945-01-161-2324
NSN 5999-00-433-7905
NSN 5999-01-244-3448
NSN 5960-01-123-8775
NSN 6105-01-097-2568
NSN 6645-01-023-8020
NSN 5999-01-586-2413
NSN 5835-01-202-9673
NSN 5985-01-425-1753
NSN 5905-00-078-9600
NSN 5905-01-146-9192