MS21250-07032
View detailed technical data, stock status, and sourcing information for: MS21250-07032
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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.
right-hand thread direction, 0.721 inches minimum and 0.761 inches maximum thread length, 2.731 inches minimum and 2.751 inches maximum fastener length, double hexagon w/hole head style, 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
- 0.721 inches minimum and 0.761 inches maximum
- Fastener Length
- 2.731 inches minimum and 2.751 inches maximum
- Head Style
- double hexagon w/hole
- Head Height
- 0.435 inches nominal
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Extended Washer Diameter
- 0.740 inches minimum and 0.750 inches maximum
- Extended Washer Thickness
- 0.099 inches nominal
- Grip Diameter
- 0.4360 inches minimum and 0.4370 inches maximum
- Nominal Thread Diameter
- 0.438 inches
- Grip Length
- 1.990 inches minimum and 2.010 inches maximum
- Thread Quantity Per Inch
- 20
- 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 8740 or steel comp 4140 or steel comp e4340 or steel comp 6150 overall
- Material Document And Classification
- mil-s-6049 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-5000 mil spec 3rd material response or mil-s-8503 mil spec 4th material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 type 2 class 3 fed spec single treatment 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 |
|---|---|
| 330-3055-080 | Shear Bolt |
| MS21250-07032 | Shear Bolt |
| VFK100G-07032 | Shear Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-075-3241?
Does the NSN 5306-00-075-3241 have a Schedule B code assigned?
Does NSN 5306-00-075-3241 require demilitarization?
Does NSN 5306-00-075-3241 contain precious materials?
Does NSN 5306-00-075-3241 contain hazardous materials?
When the NSN 5306-00-075-3241 was assigned to the Federal Catalog?
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