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 5895-00-456-2388
NSN 6620-01-633-7058
NSN 5950-00-610-4703
NSN 5895-00-669-5603
NSN 5985-01-225-8353
NSN 4140-01-517-4807
NSN 6150-00-235-6293
NSN 5960-01-027-1835
NSN 6110-01-107-7532
NSN 5985-01-626-2590
NSN 5999-01-233-7237
NSN 5835-01-396-0640