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 5945-00-855-8066
NSN 6240-01-436-9868
NSN 5935-01-093-5076
NSN 5905-01-359-8885
NSN 5950-01-471-8138
NSN 5950-01-192-5203
NSN 5915-00-737-0924
NSN 5905-01-056-5434
NSN 6620-01-167-0881
NSN 5905-01-455-5927
NSN 6105-00-111-2546
NSN 6130-01-425-1459