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About this product thread 1/4-28.
Part Number or Model | MS21042L4 |
Description | Self-Locking Nut |
Schedule B Class | 7318160000 |
ECCN (Export Control Class) | EAR99 |
Washer Outside Diameter | 0.420 inches maximum |
Washer Thickness | 0.019 inches minimum |
Width Across Flats | 0.304 inches minimum and 0.316 inches maximum |
Thread Qty Per Inch (tpi) | 28 |
Thread Series | Unjf |
Thread Size | 0.250 inches |
Thread Direction | Right-hand |
Tempurature Rating | 450 degree fahrenheit |
Thread Class | 3b |
Surface Treatment | Cadmium and chromate |
Surface Treatment Specification | Qq-p-416 type 2 class 3 fed spec single treatment response overall |
Special Features | Weapons system essential |
Overall Height | 0.204 inches minimum and 0.219 inches maximum |
Nut Style | Hexagon |
Material | Steel overall |
Lubrication | Dry film lubricant |
Locking Feature | Prevailing torque all metal design |
Hardness Rating | 49 rockwell maximum |
Criticality Code Justification | Feat |
Self-Locking Nut
Self-Locking Nut
Self-Locking Nut
Manufacture certs NSN 5310-00-807-1474 thread 10-32 self locking nut
Nut
NSN 5310-00-807-1471 thread 4-40 nut
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