National stock numbers that we have updated recently with new information.
steel overall outside diameter: 3.672 inches to 3.702 inches
iron fastener length: 1.813 inches to 1.875 inches
iron material accommodated thickness: 0.069 inches to 0.131 inches
aluminum material accommodated thickness: 0.031 inches to 0.062 inches
steel material hardness rating 36 rockwell c minimum shank and 40 rockwell c maximum shank
used in support of airborne radar & miscellaneous electrical equipment
steel material outside diameter: 0.9323 inches to 0.9325 inches