1-321-802-5889

NSN 5306-01-530-6988

Close Tolerance Hex Head Bolt

About this product

Between 1.885 inches and 1.905 inches fastener length, double hexagon extended washer head style, between 0.293 inches and 0.313 inches head height, width between flats: 0.312 inches .

Manufacturer part number J814P074A for national stock number 5306015306988.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-530-6988.

  • MPN or Model

    J814P074A

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.640 inches and 0.650 inches
  • Fastener Length
    Between 1.885 inches and 1.905 inches
  • Head Style
    Double hexagon extended washer
  • Head Height
    Between 0.293 inches and 0.313 inches
  • Width Between Flats
    0.312 inches
  • Extended Washer Diameter
    Between 0.428 inches and 0.448 inches
  • Extended Washer Thickness
    Between 0.060 inches and 0.070 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • End Application
    F404-402 engine
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.245 inches and 1.255 inches
  • Thready Qty Per Inch (tpi)
    28
  • Criticality Code Justification
    Agav
  • Surface Finish
    32.0 microinches threads
  • Material
    Nickel alloy 718
  • Material Specification
    C50tf13 cl-b-cage 07482 mfr ref single material response
  • Thread Series Designator
    Unjf
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306015306988

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
J814P074A General Electric Company
J814P074A General Electric Company
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