Min tensile strength to be 2000 psi
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 5950-01-192-0000
NSN 5990-01-268-2236
NSN 5998-01-410-7788
NSN 5996-01-547-9155
NSN 5975-00-211-7124
NSN 5930-00-627-7906
NSN 5935-01-023-3143
NSN 5965-01-121-2319
NSN 6610-01-330-1895
NSN 5905-01-346-7092
NSN 5975-00-467-8777
NSN 6105-00-317-5688