5306-01-278-1989
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
right-hand thread direction, 1.085 inches minimum and 1.135 inches maximum thread length, spline extended washer head style, 2.345 inches minimum and 2.375 inches maximum fastener length, 3a thread class
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 1.085 inches minimum and 1.135 inches maximum
- Fastener Length
- 2.345 inches minimum and 2.375 inches maximum
- Head Style
- spline extended washer
- Head Height
- 0.552 inches minimum and 0.572 inches maximum
- Extended Washer Diameter
- 1.153 inches minimum and 1.163 inches maximum
- Extended Washer Thickness
- 0.080 inches minimum and 0.100 inches maximum
- Hole Diameter
- 0.050 inches minimum and 0.060 inches maximum
- Grip Diameter
- 0.6230 inches minimum and 0.6240 inches maximum
- Head Minor Diameter
- 0.673 inches minimum and 0.688 inches maximum
- Nominal Thread Diameter
- 0.625 inches
- Grip Length
- 1.240 inches minimum and 1.260 inches maximum
- Hole Quantity
- 4
- Hole Type
- drilled
- Thread Quantity Per Inch
- 18
- Minimum Tensile Strength
- 260000 pounds per square inch
- Hardness Rating
- 51.0 rockwell c minimum and 54.0 rockwell c maximum overall
- Hole Configuration Style
- spline
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Material
- steel comp h11 overall
- Material Document And Classification
- ams 6487 assn std single material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- mil-c-8837,type 2,class 2 mil spec single treatment response overall
- Thread Series Designator
- unjf
Related Parts
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| Part Number | Name |
|---|---|
| MS21296H10020 | Shear Bolt |
FAQs
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