AN78-12
View detailed technical data, stock status, and sourcing information for: AN78-12
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
hexagon head style, 1.297 inches nominal fastener length, right-hand thread direction, 3a thread class, 0.797 inches minimum thread length
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
- 0.797 inches minimum
- Fastener Length
- 1.297 inches nominal
- Head Style
- hexagon
- Head Height
- 0.359 inches minimum and 0.391 inches maximum
- Width Between Flats
- 0.741 inches minimum and 0.751 inches maximum
- Hole Diameter
- 0.070 inches nominal
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 0.500 inches nominal
- Hole Quantity
- 6
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hardness Rating
- 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
- Hole Configuration Style
- hexagon flats
- Material
- steel comp 4037 or steel comp 4130 or steel comp 4140 or steel comp 8630 or steel comp 8735 overall
- Material Document And Classification
- ams 6300 assn std 1st material response or mil-s-6758 mil spec 2nd material response or mil-s-5626 mil spec 3rd material response or mil-s-6050 mil spec 4th material response or mil-s-6098 mil spec 5th material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,class 3 fed spec all treatment responses overall
- Thread Series Designator
- unf
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| AN78-12 | Machine Bolt |
| MS20073-08-12 | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-151-2530?
Does the NSN 5306-00-151-2530 have a Schedule B code assigned?
Does NSN 5306-00-151-2530 require demilitarization?
Does NSN 5306-00-151-2530 contain precious materials?
Does NSN 5306-00-151-2530 contain hazardous materials?
When the NSN 5306-00-151-2530 was assigned to the Federal Catalog?
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