R544P13U
View detailed technical data, stock status, and sourcing information for: R544P13U
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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.
hexagon head style, 3a thread class, 0.990 inches minimum and 1.010 inches maximum fastener length, 0.740 inches minimum and 0.820 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
- 0.740 inches minimum and 0.820 inches maximum
- Fastener Length
- 0.990 inches minimum and 1.010 inches maximum
- Head Style
- hexagon
- Head Height
- 0.178 inches minimum and 0.198 inches maximum
- Width Between Flats
- 0.430 inches minimum and 0.439 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.190 inches minimum and 0.250 inches maximum
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Surface Finish
- 125.0 microinches threads
- Surface Finish
- 125.0 microinches top of head
- Surface Finish
- 63.0 microinches bearing surface of head
- Surface Finish
- 63.0 microinches grip
- Material
- iron alloy 660 overall
- Material Document And Classification
- ams 5732 assn std single material response overall
- 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 |
|---|---|
| R544P13U | Machine Bolt |
FAQs
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What is the FSCG of the NSN 5306-00-245-4676?
Does the NSN 5306-00-245-4676 have a Schedule B code assigned?
Does NSN 5306-00-245-4676 require demilitarization?
Does NSN 5306-00-245-4676 contain precious materials?
Does NSN 5306-00-245-4676 contain hazardous materials?
When the NSN 5306-00-245-4676 was assigned to the Federal Catalog?
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