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NSN 5306-01-361-7057

Close Tolerance Hex Head Bolt

About this product

Between 0.980 inches and 1.000 inches fastener length, spline extended washer head style, between 0.240 inches and 0.260 inches head height, extended washer diameter: between 0.460 inches and 0.470 inches .

Manufacturer part number A78325-4H-8 for national stock number 5306013617057.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-361-7057.

  • MPN or Model

    A78325-4H-8

  • 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 0.495 inches and 0.500 inches
  • Fastener Length
    Between 0.980 inches and 1.000 inches
  • Head Style
    Spline extended washer
  • Head Height
    Between 0.240 inches and 0.260 inches
  • Extended Washer Diameter
    Between 0.460 inches and 0.470 inches
  • Extended Washer Thickness
    Between 0.026 inches and 0.046 inches
  • Hole Diameter
    Between 0.095 inches and 0.135 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Head Minor Diameter
    Between 0.318 inches and 0.323 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.490 inches and 0.510 inches
  • Hole Quantity
    4
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    28
  • Hole Configuration Style
    Spline
  • Material
    Nickel alloy 718
  • Material Specification
    Ams5662 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment 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 5306013617057

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
A78325-4H-8 Sps Technologies, Llc
A78325-4H-8 Moog Inc.
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