5305-01-129-6939
Find complete technical information, availability, and procurement data for: 5305-01-129-6939
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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.
3a thread class, right-hand thread direction, flat countersunk head style, 0.400 inches minimum and 0.450 inches maximum thread length, 0.722 inches minimum and 0.752 inches maximum 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
- 0.400 inches minimum and 0.450 inches maximum
- Fastener Length
- 0.722 inches minimum and 0.752 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.464 inches minimum and 0.506 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.302 inches minimum and 0.322 inches maximum
- 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
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp 8740 overall
- Material Document And Classification
- mil-s-6049 mil spec single material response overall
- Surface Treatment
- aluminum and chromate overall
- Surface Treatment Document And Classification
- mil-c-83488 type 2 class 3 mil spec single treatment response overall
- Thread Series Designator
- unjf
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FAQs
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When the NSN 5305-01-129-6939 was assigned to the Federal Catalog?
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