NAS636A40
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A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.
double hexagon w/hole head style, 3a thread class, 3.882 inches nominal fastener length, right-hand thread direction, 1.382 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
- 1.382 inches minimum
- Fastener Length
- 3.882 inches nominal
- Head Style
- double hexagon w/hole
- Head Height
- 0.923 inches nominal
- Width Between Flats
- 1.056 inches minimum and 1.066 inches maximum
- Extended Washer Diameter
- 1.620 inches nominal
- Extended Washer Thickness
- 0.222 inches nominal
- Grip Diameter
- 0.9980 inches minimum and 0.9990 inches maximum
- Nominal Thread Diameter
- 1.000 inches
- Grip Length
- 2.500 inches nominal
- Thread Quantity Per Inch
- 14
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Material
- steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- nas672 assn std single treatment response overall
- Thread Series Designator
- uns
- Specification/Standard Data
- 80205-nas636 professional/industrial association standard
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 |
|---|---|
| NAS636A40 | Shear Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-943-5413?
Does the NSN 5306-00-943-5413 have a Schedule B code assigned?
Does NSN 5306-00-943-5413 require demilitarization?
Does NSN 5306-00-943-5413 contain precious materials?
Does NSN 5306-00-943-5413 contain hazardous materials?
When the NSN 5306-00-943-5413 was assigned to the Federal Catalog?
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