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NSN 5305-01-157-3378

High Torque Screw

About this product

Retaining element in shank.

Manufacturer part number MS3369B627 for national stock number 5305011573378.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-157-3378.

  • MPN or Model

    MS3369B627

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.351 inches and 0.402 inches
  • Fastener Length
    Between 2.226 inches and 2.246 inches
  • Head Style
    Crowned hexagon
  • Head Height
    Between 0.189 inches and 0.204 inches
  • Width Between Flats
    Between 0.553 inches and 0.564 inches
  • Grip Diameter
    Between 0.3737 inches and 0.3742 inches
  • Shank Unthreaded Hole Diameter
    0.106 inches first hole and 0.116 inches first hole
  • Internal Drive Style
    Slot
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 1.688 inches and 1.704 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    63000 pounds per square inch
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.109 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • 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 5305011573378

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS3369B627 Military Standards
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