Military Standard - Self Locking Hexagon Nut - MS20500-524
Standard Part
Description: Self Locking Hexagon Nut
Part Number: MS20500-524
Alternate Part Numbers: 91123608, H19475-5, 5310002084023, 4168655
Product Overview:
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.
Item Specification:
| Thread Class | 3B | |
| Thread Direction | Right-hand | |
| Locking Feature | Prevailing torque all metal design | |
| Nut Style | Hexagon | |
| Nut Height | 0.312 inches minimum and 0.360 inches maximum | |
| End Item Identification | Mrap - m-atv ui; high-mobility artillery rocket system (himars) | |
| Width Across Flats | 0.492 inches minimum and 0.502 inches maximum | |
| Temp Rating | 1200.0 deg fahrenheit nominal | |
| Thread Series | UNJF | |
| Thread Quantity per Inch | 24 | |
| Nominal Thread Size | 0.312 inches | |
| Countersink Angle | 88.0 degrees nominal nut | |
| Bearing Surface Type | Chamfered | |
| Bearing Surface Finish | 125.0 microinches | |
| Material | Steel corrosion resisting overall | |
| Precious Material and Location | All surfaces silver | |
| Precious Material | Silver | |
| Surface Treatment | Silver overall | |
| Surface Treatment Document and Classification | Ams 2410 assn std single treatment response overall |