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NSN 5305-01-097-7917

High Torque Screw

About this product

Between 0.797 inches and 0.827 inches fastener length, oval countersunk head style, between 0.2966 inches and 0.3016 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .

Manufacturer part number HT4072-3-8-5 for national stock number 5305010977917.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-097-7917.

  • MPN or Model

    HT4072-3-8-5

  • 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 0.287 inches and 0.337 inches
  • Fastener Length
    Between 0.797 inches and 0.827 inches
  • Head Style
    Oval countersunk
  • Head Diameter
    Between 0.2966 inches and 0.3016 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.490 inches and 0.510 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    100.0 degrees
  • Material
    Stainless steel
  • Material Specification
    23-112 fscm 73197 mfr ref single material response
  • Surface Treatment
    Aluminum
  • Surface Treatment Specification
    Mil-c-83488, type 2, class 3 military 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 5305010977917

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT4072-3-8-5 Hi-shear Corporation
3M938-3-8-5 Boeing Company, The
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