7124403 FIND NO 56
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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, 3a thread class, 1.00 inches nominal thread length, flat chamfer head style, 2.00 inches nominal fastener 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
- 1.00 inches nominal
- Fastener Length
- 2.00 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.550 inches minimum and 0.562 inches maximum
- Head Height
- 0.368 inches minimum and 0.375 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.375 inches
- Width Across Flats
- 0.312 inches nominal
- Thread Quantity Per Inch
- 16
- Minimum Tensile Strength
- 170000 pounds per square inch
- Hardness Rating
- 37.0 rockwell c minimum and 45.0 rockwell c maximum overall
- Minimum Yield Strength
- 153000 pounds per square inch
- Chamfer Angle
- 30.0 degrees minimum and 45.0 degrees maximum
- Part Name Assigned By Controlling Agency
- socket head cap screw
- Material
- steel overall
- Material Document And Classification
- mil-dtl-1222j, a574 alloy steel mil spec single material response overall
- Thread Series Designator
- unc
- Specification/Standard Data
- 81349-mil-dtl-1222j government specification
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 |
|---|---|
| 7124403 FIND NO 56 | Socket Head Cap Screw |
| M1222SN6C332GINN | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-695-2242?
Does the NSN 5305-01-695-2242 have a Schedule B code assigned?
Does NSN 5305-01-695-2242 require demilitarization?
Does NSN 5305-01-695-2242 contain precious materials?
Does NSN 5305-01-695-2242 contain hazardous materials?
When the NSN 5305-01-695-2242 was assigned to the Federal Catalog?
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