NASM3 THRU NASM20-AN4CH3A
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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.
3a thread class, right-hand thread direction, hexagon head style, 0.469 inches nominal fastener length, 0.407 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
- 0.407 inches minimum
- Fastener Length
- 0.469 inches nominal
- Head Style
- hexagon
- Head Height
- 0.140 inches minimum and 0.172 inches maximum
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Hole Diameter
- 0.046 inches nominal
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.062 inches nominal
- Hole Quantity
- 1
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hole Configuration Style
- hexagon flats
- Material
- steel corrosion resisting overall
- Material Document And Classification
- qq-s-770 fed spec single material response overall
- Surface Treatment
- passivate overall
- Thread Series Designator
- unf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5306-00-275-9680 | No Name Available | 01/01/1960 |
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 |
|---|---|
| AN4CH3A | Machine Bolt |
| NASM3 THRU NASM20-AN4CH3A | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-180-2777?
Does the NSN 5306-00-180-2777 have a Schedule B code assigned?
Does NSN 5306-00-180-2777 require demilitarization?
Does NSN 5306-00-180-2777 contain precious materials?
Does NSN 5306-00-180-2777 contain hazardous materials?
When the NSN 5306-00-180-2777 was assigned to the Federal Catalog?
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Pricing
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