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NSN 5305-01-145-9178

High Torque Screw

About this product

Between 1.753 inches and 1.773 inches fastener length, flat countersunk head style, between 0.748 inches and 0.754 inches head diameter, grip diameter: between 0.4985 inches and 0.4995 inches .

Manufacturer part number GB510DF8-19 for national stock number 5305011459178.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-145-9178.

  • MPN or Model

    GB510DF8-19

  • 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 0.560 inches and 0.590 inches
  • Fastener Length
    Between 1.753 inches and 1.773 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.748 inches and 0.754 inches
  • Grip Diameter
    Between 0.4985 inches and 0.4995 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.438 inches
  • Grip Length
    Between 1.183 inches and 1.193 inches
  • Width Across Flats
    Between 0.190 inches and 0.193 inches
  • Thready Qty Per Inch (tpi)
    20
  • Countersink Angle
    100.0 degrees
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp 431
  • Material Specification
    Ams5628 assn standard single material response or mil-s-18732 military specification single material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2, cl 2 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 5305011459178

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
GB510DF8-19 Northrop Grumman Systems Corporation
HL403-16-19# Sps Technologies, Llc
GB510DF8-19 Alcoa Global Fasteners, Inc.
GB510DF8-19 Hi-shear Corporation
GB510DF8-19 Lisi Aerospace Canada Corp
GB510DF8-19 Holman Mfg Co Inc
GB510DF8-19 Northrop Grumman Systems Corporation
HL403-16-19# Sps Technologies, Llc
GB510DF8-19 Alcoa Global Fasteners, Inc.
GB510DF8-19 Holman Mfg Co Inc
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