| Series | N/A SF(T)5902 | 
| Material | N/A 8740 Alloy Steel per AMS6322 | 
| Heat Treat | N/A 35 HRC ( 160 KSI min) | 
| Finish | N/A Cadmium Plate per AMS- QQ-P-416, Type II, Class 3 | 
| Military Part Number | N/A MS51992C503-29 | 
| Lockring - Low Strength Magnesium | N/A RL1997-103 | 
| Lockring - Aluminum | N/A RLRR1997-103 | 
| Lockring Part Number | N/A RLRR1997E103 | 
| Lockring Military Part Number | N/A MS51997E103P | 
| Nut End Type | N/A Undrilled | 
| A Nut End Thread Size | N/A 0.2500-28 UNJF-3A | 
| Stud End type | N/A Recess | 
| B Stud End Thread Size | N/A 0.3750-24 | 
| B Stud End Thread-Pitch Diameter | N/A 0.3512-0.3497 in | 
| B Stud End Thread-Minor Diameter | N/A 0.3271-0.3185 in | 
| C ±.020 | N/A 0.486 in | 
| D - Dia | N/A 0.249-0.246 in | 
| E - Dia +.005 -.004 | N/A 0.255 in | 
| F - Dia +.007 -.002 | N/A 0.284 in | 
| G - Dia +.000 -.015 | N/A 0.318 in | 
| H - Dia Min | N/A 0.233 in | 
| J | N/A 17.000 | 
| K +2 -1 | N/A 86.000 º | 
| M | N/A 0.281 in | 
| N -Dia | N/A 0.202 in | 
| T ±.015 | N/A 0.594 in | 
| V ±.016 | N/A 0.142 Inch | 
| P - Dia ±.010 | N/A 0.190 in | 
| L ±.015 | N/A 1.812 in | 
| Grip Length | N/A 1.218 in | 
| Shank Length | N/A 0.125 in | 
| Step Drill Part Number | N/A SDC390JC | 
| Drive Wrench Number | N/A R1105W | 
| Lockring Drive Tool Part Number | N/A SF5902-3D | 
| Notes | N/A 
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