Used on B-1. 0.199" hole diameter 0.375" outside diameter 0.010" material thickness concave is 0.4375 radius, height unknown. nickel surface treated spring tension
Used on nsn 2320-01-595-3994. right-hand 10 thread quantity per inch nut, flange, hex spiralock G8 material grade 8 carbon steel phosphate zinc surface treated
Used on tractor,wheeled,industrial. 0.502" hole diameter 0.869" outside diameter 0.125" material thickness washer, lock, split finish final protective iaw 12424710 method 4 split helical-right hand
Used on nsn 2320-01-595-3994. 2b thread class right-hand 11 thread quantity per inch nut, lock, hex, prevailing torque .62-11 unc-2b phosphate surface treated