MS21042L4 Nut

Part#: MS21042L4 NSN: 5310-00-807-1475

About this product thread 1/4-28.

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Product Details

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

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