Power AC Acme Nut (NPB), NPB1/4-20 LH | Helix Linear Technologies

D - Thread Size (in)	.562-18
Diameter Code	25
Dynamic Load Capacity (lbs)	312
E - Thread Length (in)	0.380
Efficiency (%)	31.23549386
Imperial or Metric	TRUE
Lead (in)	0.050
Lead Accuracy +/- (in/in)	0.0003
Lead Time	2 Weeks
Material	Bronze
Mating Screw Part No	1/4-20 LH
Maximum Axial Lash (in)	FALSE
Nominal Diameter A (in)	0.250
Nut Code	NPB
Nut Diameter B (in)	0.680
Nut Length C (in)	0.620
Nut Type	Bronze Acme Nut
Pitch (in)	0.050
Pitch (mm)	1.270
Product Category	Lead Screw Nut
Product Sub Category	Freewheeling
Product Sub Category 1	Standard
Starts	1
Thread Class	2C
Thread Direction	LH
Thread Type	Acme
Threads Per Inch	20
Torque to Raise 1 lb (in-lb)	0.02547661705
Turns Per Inch of Travel	20