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NSN 5305-00-001-9940

High Torque Screw

About this product

Between 0.470 inches and 0.517 inches fastener length, flat countersunk head style, between 0.325 inches and 0.385 inches head diameter, grip diameter: between 0.1885 inches and 0.1894 inches .

Manufacturer part number 72791H3A4 for national stock number 5305000019940.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-001-9940.

  • MPN or Model

    72791H3A4

  • 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
    0.236 inches
  • Fastener Length
    Between 0.470 inches and 0.517 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.325 inches and 0.385 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1894 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    0.250 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    132000 pounds per square inch
  • Hardness Rating
    46.0 rockwell c and 50.0 rockwell c
  • Countersink Angle
    100.0 degrees
  • Material
    Steel comp h11
  • 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 5305000019940

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
72791H3A4 Sps Technologies, Llc
GB510AD3A4 Northrop Grumman Systems Corporation
72791H3A4 Sps Technologies Inc
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