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 5975-01-442-4493
NSN 6150-00-919-1601
NSN 5960-01-523-9098
NSN 5935-01-474-6361
NSN 5985-00-636-8689
NSN 6220-00-140-5638
NSN 5835-01-406-9638
NSN 5930-01-359-3914
NSN 6110-01-466-8839
NSN 6105-01-398-1932
NSN 5895-00-093-0292
NSN 5935-01-048-9364