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NSN 5305-00-263-8708

High Torque Screw

About this product

Between 1.285 inches and 1.331 inches fastener length, flat countersunk head style, between 0.452 inches and 0.510 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .

Manufacturer part number 64228V4-14 for national stock number 5305002638708.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-263-8708.

  • MPN or Model

    64228V4-14

  • 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 0.400 inches and 0.466 inches
  • Fastener Length
    Between 1.285 inches and 1.331 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.452 inches and 0.510 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.865 inches and 0.885 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    63.0 microinches grip
  • Material
    Titanium alloy
  • Material Specification
    Nas 621, 6al-4v assn standard 1st material response or ams 4928 assn standard 2nd material response
  • Thread Series Designator
    Unf
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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 5305002638708

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
64228V4-14 Sps Technologies, Llc
C792-4-14 Sps Technologies, Llc
C792-4-14 Arconic Global Fasteners & Rings,
C792-4-14 Alcoa Global Fasteners, Inc.
C792-4-14 Textron Fastening Systems
C792-4-14 Lockheed Martin Corporation
64228V4-14 Sps Technologies Inc
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