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NSN 5306-00-395-4998

Close Tolerance Hex Head Bolt

About this product

Retaining element in shank.

Manufacturer part number AS116-04-18 for national stock number 5306003954998.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-395-4998.

  • MPN or Model

    AS116-04-18

  • 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 0.277 inches and 0.328 inches
  • Fastener Length
    Between 1.543 inches and 1.563 inches
  • Head Style
    Pan no. 2
  • Head Diameter
    Between 0.477 inches and 0.492 inches
  • Head Height
    Between 0.126 inches and 0.141 inches
  • Grip Diameter
    Between 0.2487 inches and 0.2492 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.125 inches and 1.141 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    90000 pounds per square inch
  • Surface Finish
    32.0 microinches grip
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Iron alloy 660
  • 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 5306003954998

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
AS116-04-18 Avibank Mfg., Inc.
MS21125-0418 National Aerospace Standards
MS21125-0418 Military Standards
CA2652-04-18 Arconic Global Fasteners & Rings,
AS116-04-18 Avibank Mfg., Inc.
CA2652-04-18 Arconic Global Fasteners & Rings,
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