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 5910-01-481-8674
NSN 5835-01-336-1153
NSN 4140-01-581-7160
NSN 5998-00-236-0108
NSN 6110-00-520-8442
NSN 5950-01-432-0877
NSN 6150-01-413-6528
NSN 5945-00-505-4507
NSN 6650-00-084-4258
NSN 5910-01-416-7512
NSN 5999-01-444-4275
NSN 7035-00-365-3989