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NSN 5305-01-491-4259

High Torque Screw

About this product

Plastic cap permenently affixed to head.

Manufacturer part number 03A519-4-13C for national stock number 5305014914259.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-491-4259.

  • MPN or Model

    03A519-4-13C

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.425 inches
  • Fastener Length
    Between 1.222 inches and 1.252 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.449 inches and 0.507 inches
  • Spline Major Diameter
    Between 0.173 inches and 0.183 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    Torx
  • End Application
    Adv tech bmbr
  • Thread Diameter
    0.250 inches
  • Grip Length
    0.562 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Titanium alloy uns r56400 fastener
  • Material Specification
    Ams4928 assn standard single material response fastener or ams4967 assn standard single material response fastener
  • Thread Series Designator
    Unjf
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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 5305014914259

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
03A519-4-13C Northrop Grumman Systems Corporation
CB9350-4-13C Click Bond, Inc.
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