AS126-3-12
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
0.262 inches minimum and 0.313 inches maximum thread length, 1.122 inches minimum and 1.142 inches maximum fastener length, 3a thread class, pan no. 2 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
- 0.262 inches minimum and 0.313 inches maximum
- Fastener Length
- 1.122 inches minimum and 1.142 inches maximum
- Head Style
- pan no. 2
- Head Diameter
- 0.360 inches minimum and 0.374 inches maximum
- Head Height
- 0.095 inches minimum and 0.110 inches maximum
- Grip Diameter
- 0.1889 inches minimum and 0.1894 inches maximum
- Shank Unthreaded Hole Diameter
- 0.070 inches minimum and 0.080 inches maximum first hole
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.829 inches minimum and 0.860 inches maximum
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 1.043 inches minimum and 1.059 inches maximum first hole
- 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
- Surface Treatment
- passivate 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 |
|---|---|
| AS126-3-12 | Close Tolerance Screw |
| CA2654-3-12 | Close Tolerance Screw |
FAQs
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What is the FSCG of the NSN 5305-00-512-6433?
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Does NSN 5305-00-512-6433 contain hazardous materials?
When the NSN 5305-00-512-6433 was assigned to the Federal Catalog?
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