NATO Stock Number
5136-00-276-8900
Sold in multiples of
DEMIL
NO
Thread Pitch Diameters
+1.2293/+1.2298 inches
Thread Direction
Right-hand
Thread Length
Between 1.406 inches and 1.594 inches
Shank Diameter
Between 1.019 inches and 1.021 inches
Width Across Flats
Between 0.758 inches and 0.766 inches
Overall Length
Between 3.938 inches and 4.062 inches
Flute Quantity
6
Thread Structure
Regular
Thread Forming Method
Ground
Starting Chamfer Type
Plug
Square End Length
Between 0.938 inches and 1.062 inches
Material And Location
Steel, high speed
Style Designator
Straight flute
Thread Size And Series/type Designator
1.250-20 uns
Nondefinitive Specification/std Data
1 type and c series and b style
Departure From Cited Designator
As mod by pitch dia