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NSN 5305-01-197-5937

High Torque Screw

About this product

Between 0.935 inches and 0.955 inches fastener length, flat countersunk head style, between 0.328 inches and 0.385 inches head diameter, locking feature: detent ball grip.

Manufacturer part number MS21130-309 for national stock number 5305011975937.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-197-5937.

  • MPN or Model

    MS21130-309

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.263 inches and 0.314 inches
  • Fastener Length
    Between 0.935 inches and 0.955 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.328 inches and 0.385 inches
  • Locking Feature
    Detent ball grip
  • Grip Diameter
    Between 0.1889 inches and 0.1894 inches
  • Shank Unthreaded Hole Diameter
    0.070 inches first hole and 0.080 inches first hole
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.562 inches and 0.578 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    63000 pounds per square inch
  • Hardness Rating
    43.0 rockwell c fastener and 47.0 rockwell c fastener
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    0.845 inches first hole and 0.865 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp 632 fastener
  • Material Specification
    Ams 5629 assn standard single material response fastener
  • 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 5305011975937

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21130-309 Military Standards
MS21130B309 National Aerospace Standards
MS21130B309 Military Standards
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