NASM21250-H04010
View detailed technical data, stock status, and sourcing information for: NASM21250-H04010
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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.
1.137 inches nominal fastener length, 3a thread class, 0.502 inches minimum and 0.522 inches maximum thread length, double hexagon w/hole head style, 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
- 0.502 inches minimum and 0.522 inches maximum
- Fastener Length
- 1.137 inches nominal
- Head Style
- double hexagon w/hole
- Head Height
- 0.300 inches nominal
- Width Between Flats
- 0.304 inches minimum and 0.313 inches maximum
- Extended Washer Diameter
- 0.428 inches minimum and 0.438 inches maximum
- Extended Washer Thickness
- 0.069 inches nominal
- Hole Diameter
- 0.037 inches nominal
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.615 inches minimum and 0.635 inches maximum
- Hole Quantity
- 4
- Hole Type
- drilled
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Hole Configuration Style
- round longitudinal hole
- Material
- steel comp e4340 or steel comp 8740 or steel comp 6150 or steel comp 4140 overall
- Material Document And Classification
- mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-5626 mil spec 4th material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,cl 3 fed spec all treatment responses 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 |
|---|---|
| MS21250H04010 | Shear Bolt |
| NASM21250-H04010 | Shear Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-400-0047?
Does the NSN 5306-00-400-0047 have a Schedule B code assigned?
Does NSN 5306-00-400-0047 require demilitarization?
Does NSN 5306-00-400-0047 contain precious materials?
Does NSN 5306-00-400-0047 contain hazardous materials?
When the NSN 5306-00-400-0047 was assigned to the Federal Catalog?
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Surplus | 128 |
| New Material | 2,930 |
| Serviceable | 1 |
| Total | 3,059 |