A51M42520-13
View detailed technical data, stock status, and sourcing information for: A51M42520-13
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part A51M42520-13 to receive an up to date pricing and availability quote by email.
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.
2.322 inches nominal fastener length, 3a thread class, hexagon head style, 0.387 inches maximum thread length, right-hand thread direction
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
- 0.387 inches maximum
- Fastener Length
- 2.322 inches nominal
- Head Style
- hexagon
- Head Height
- 0.100 inches nominal
- Width Between Flats
- 0.553 inches minimum and 0.564 inches maximum
- Grip Diameter
- 0.3725 inches minimum and 0.3731 inches maximum
- Shank Unthreaded Hole Diameter
- 0.075 inches minimum and 0.080 inches maximum first hole
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 1.935 inches nominal
- Thread Quantity Per Inch
- 24
- Hardness Rating
- 46.0 rockwell c minimum and 49.0 rockwell c maximum overall
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 2.221 inches nominal first hole
- Surface Finish
- 63.0 microinches grip
- Material
- steel overall
- Surface Treatment
- cadmium overall
- Test Data Document
- "81349-mil-i-6868 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
- Thread Series Designator
- unjf
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 |
|---|---|
| A51M42520-13 | Close Tolerance Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-922-1486?
Does the NSN 5306-00-922-1486 have a Schedule B code assigned?
Does NSN 5306-00-922-1486 require demilitarization?
Does NSN 5306-00-922-1486 contain precious materials?
Does NSN 5306-00-922-1486 contain hazardous materials?
When the NSN 5306-00-922-1486 was assigned to the Federal Catalog?
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- AS9120 Quality Standards
- 100% Quality Inspections
You May Also Like
Browse other in-demand NSN parts sourced by professionals in defense, aerospace, and manufacturing sectors. Each component meets strict standards for quality and performance.
Pricing
Submit your request below and our team will respond quickly with up-to-date pricing, delivery estimates, and stock information:
