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NSN 5305-00-123-9188

High Torque Screw

About this product

Primer applied to head.

Manufacturer part number 3MFRA123-3-6P for national stock number 5305001239188.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-123-9188.

  • MPN or Model

    3MFRA123-3-6P

  • 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 0.380 inches and 0.447 inches
  • Fastener Length
    Between 0.765 inches and 0.812 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.3765 inches and 0.3813 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.365 inches and 0.385 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    100.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Stainless steel
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type 2, class 3 federal specification single treatment 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 5305001239188

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
3MFRA123-3-6P Boeing Company, The
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