NSN 5305-01-118-7430

High Torque Screw

About this product

Between 2.839 inches and 2.886 inches fastener length, flat countersunk head style, between 0.573 inches and 0.635 inches head diameter, grip diameter: between 0.3108 inches and 0.3117 inches .

Manufacturer part number H148-5-38 for national stock number 5305011187430.


  • Product description

    Close Tolerance Screw NSN 5305-01-118-7430.

  • MPN or Model


  • 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
  • Thread Direction
  • Thread Length
    Between 0.454 inches and 0.521 inches
  • Fastener Length
    Between 2.839 inches and 2.886 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.573 inches and 0.635 inches
  • Grip Diameter
    Between 0.3108 inches and 0.3117 inches
  • Internal Drive Style
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 2.365 inches and 2.385 inches
  • Thready Qty Per Inch (tpi)
  • Min. Tensile Strength (psi)
    220000 pounds per square inch
  • Hardness Rating
    46.0 rockwell c and 50.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp h11
  • Material Specification
    Ams6487 assn standard single material response
  • Surface Treatment
    Cadmium or cadmium and chromate
  • Surface Treatment Specification
    Nas672 assn standard 1st treatment response or mil-c-8837, type 2, class 2 military specification 2nd treatment response
  • Thread Series Designator
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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 5305011187430

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
H148-5-38 Huck International, Inc.
HT8171-5-38 Alcoa Global Fasteners, Inc.
106706H-5-38 Sps Technologies, Llc
GB510BC5-38 Northrop Grumman Systems Corporation
GB510CE5-38 Northrop Grumman Systems Corporation
106706H-5-38 Sps Technologies, Llc
GB510FG5-38 Northrop Grumman Systems Corporation
GB510FG5-38 Sps Technologies, Llc
GB510FG5-38 Sps Technologies, Llc
GB510FG5-38 Hi-shear Corporation
GB510FG5-38 Lisi Aerospace Canada Corp
H148-5-38 Huck Intl Inc
GB510CE Northrop Grumman Systems Corporation
Stock Check
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