NK4DD5
View detailed technical data, stock status, and sourcing information for: NK4DD5
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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, 0.436 inches minimum and 0.515 inches maximum thread length, 0.640 inches minimum and 0.687 inches maximum fastener length, right-hand thread direction, 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
- 0.436 inches minimum and 0.515 inches maximum
- Fastener Length
- 0.640 inches minimum and 0.687 inches maximum
- 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
- Locking Feature
- pellet threads
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.172 inches minimum and 0.204 inches maximum
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 62000 pounds per square inch
- Material
- aluminum alloy overall
- Material Document And Classification
- qq-a-200 fed spec single material response or qq-a-225 fed spec single material response or qq-a-430 fed spec single material response overall
- Surface Treatment
- anodize or chromate overall
- Surface Treatment Document And Classification
- mil-a-8625 mil spec 1st treatment response or mil-c-5541 mil spec 2nd treatment response 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 5306-00-050-9271 | No Name Available | 08/01/1986 |
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 |
|---|---|
| NK4DD5 | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-051-6911?
Does the NSN 5306-00-051-6911 have a Schedule B code assigned?
Does NSN 5306-00-051-6911 require demilitarization?
Does NSN 5306-00-051-6911 contain precious materials?
Does NSN 5306-00-051-6911 contain hazardous materials?
When the NSN 5306-00-051-6911 was assigned to the Federal Catalog?
Professional Distribution
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