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NSN 5305-00-169-9978

High Torque Screw

About this product

Between 1.438 inches and 1.468 inches fastener length, between 0.704 inches and 0.762 inches head diameter, between 0.3735 inches and 0.3745 inches grip diameter, internal drive style: offset cruciform (torque set).

Manufacturer part number NAS1156V17 for national stock number 5305001699978.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-169-9978.

  • MPN or Model

    NAS1156V17

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.366 inches and 0.416 inches
  • Fastener Length
    Between 1.438 inches and 1.468 inches
  • Head Diameter
    Between 0.704 inches and 0.762 inches
  • Grip Diameter
    Between 0.3735 inches and 0.3745 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 1.052 inches and 1.072 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Nas 621 comp 6al-4v assn standard single material response or ams 4928 assn standard single material response
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas1156 professional/industrial association standard
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Close Tolerance Screw

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.

Mechanic Bill explains High Torque Screw

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NSN 5305001699978

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1156V17 National Aerospace Standards
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