• MATERIAL : STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
  • MATERIAL DOCUMENT AND CLASSIFICATION : 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • SURFACE TREATMENT : CADMIUM AND CHROMATE OVERALL​​​​​​​ 
  • SURFACE TREATMENT DOCUMENT AND CLASSIFICATION : QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL​​​​​​​
  • HARDNESS RATING : 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM​​​​​​​
  • STYLE DESIGNATOR : 101 FLAT INTERNAL TEETH​​​​​​​
  • HOLE DIAMETER : 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM​​​​​​​
  • OUTSIDE DIAMETER : 0.594 INCHES MINIMUM AND 0.610 INCHES MAXIMUM​​​​​​​
  • MATERIAL THICKNESS : 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM​​​​​​​

Lock Washer

  • Size: 5/16", internal tooth, zinc II plated