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 6240-01-556-7096
NSN 5950-01-610-9335
NSN 6240-01-459-6965
NSN 2925-01-197-7864
NSN 5935-00-539-2467
NSN 6145-00-679-6470
NSN 5960-01-437-1315
NSN 6620-01-289-8486
NSN 6130-01-496-2023
NSN 5945-01-461-8494
NSN 5985-00-726-8654
NSN 6105-01-365-2634