| Series | N/A RL | 
| Basic Lockring Size | N/A 18 | 
| Material Type1 | N/A 4130 Steel or 4140 Steel or 8740 Steel | 
| Material Specification | N/A AMS 6370 (4130 Steel), AMS 6382 (4140 Steel), AMS 6322 (8740 Steel) | 
| Heat Treat | N/A 36-45 HRc per AMS 2759 | 
| Finish | N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 3 | 
| A - Dia +.005 -.004 | N/A 0.308 in | 
| B - Dia +.004 -.003 | N/A 0.189 in | 
| C - Thickness | N/A 0.099 in | 
| D - Dia | N/A 0.255 in | 
| E - Nr. of External Serrations (Total Teeth), Approx | N/A 20.000 | 
| F - Nr. of Internal Serrations | N/A 16.000 | 
| 
                                                                            N/A
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