C672-1
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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.
flat countersunk head style, right-hand thread direction, 3a thread class, 1.551 inches minimum and 1.661 inches maximum fastener length, 0.879 inches minimum and 1.071 inches maximum thread 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
- 0.879 inches minimum and 1.071 inches maximum
- Fastener Length
- 1.551 inches minimum and 1.661 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.328 inches minimum and 0.385 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Shank Unthreaded Hole Diameter
- 0.075 inches nominal first hole
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.590 inches minimum and 0.610 inches maximum
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 1.524 inches minimum and 1.544 inches maximum first hole
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- titanium alloy overall
- Thread Series Designator
- unf
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FAQs
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What is the FSCG of the NSN 5305-00-143-2722?
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Does NSN 5305-00-143-2722 require demilitarization?
Does NSN 5305-00-143-2722 contain precious materials?
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When the NSN 5305-00-143-2722 was assigned to the Federal Catalog?
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