NATO Stock Number
3040-00-385-7808
Sold in multiples of
DEMIL
DEMIL/MLI
End Similarity
Not identical
Thread Length
0.495 inches first end, third portion
Thread Length
0.505 inches first end, third portion
Thread Length
0.948 inches second end, fourth portion
Spline Major Diameter
1.116 inches second end, third portion
Spline Major Diameter
1.117 inches second end, third portion
Overall Length
8.875 inches
Keyway Width
0.188 inches first end, third portion
Spline Minor Diameter
1.021 inches second end, third portion
Spline Minor Diameter
1.022 inches second end, third portion
Screw Thread Series Designator
Unf second end, fourth portion
Screw Thread Series Designator
Uns first end, third portion
Shaft Thread Direction
Right-hand first end, third portion
Shaft Thread Direction
Right-hand second end, fourth portion
Teeth Hardness Rating
Between 35.0 rockwell c and 38.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
0.625 inches
Worm Thread Direction
Left-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
4 degrees 33 min.
Worm Outside Diameter
2.8975 inches
Worm Pitch Diameter
2.500 inches
Shaft Hardness Rating
Between 35.0 rockwell c and 38.0 rockwell c
Worm Thread Section Length
3.188 inches
Worm Body Length
3.563 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
0.557 inches second end, second portion
Straight Unthreaded Length
0.625 inches first end, second portion
Straight Unthreaded Length
0.719 inches first end, first portion
Straight Unthreaded Length
0.719 inches second end, first portion
Straight Unthreaded Section Diameter
1.438 inches first end, first portion
Straight Unthreaded Section Diameter
1.1810 inches first end, second portion
Straight Unthreaded Section Diameter
1.1810 inches second end, second portion
Straight Unthreaded Section Diameter
1.1814 inches first end, second portion
Straight Unthreaded Section Diameter
1.1814 inches second end, second portion
Unthreaded Section Keyway Width
0.1880 inches first end, second portion
Unthreaded Section Keyway Depth
0.094 inches first end, second portion
Straight Spline Length
1.245 inches second end, third portion
Threaded Section Pin Hole Diameter
0.140 inches second end, fourth portion
Straight Spline Quantity
10 either end
Material
Steel
Material
Steel
Surface Treatment
Phosphate
Surface Treatment
Phosphate
Fsc Application Data
Launcher, 762-mm rocket, truck mounted, xm289
