1-321-802-5889

NSN 5306-01-334-7915

Close Tolerance Hex Head Bolt

About this product

Hole drilled in top center of head,0.185/0.225 in. Dia x 0.118 in. Nomdeep.

Manufacturer part number MS21297H05013 for national stock number 5306013347915.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-334-7915.

  • MPN or Model

    MS21297H05013

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.596 inches
  • Fastener Length
    Between 1.401 inches and 1.431 inches
  • Head Style
    Spline extended washer
  • Head Height
    Between 0.302 inches and 0.322 inches
  • Extended Washer Diameter
    0.580 inches
  • Extended Washer Thickness
    Between 0.035 inches and 0.055 inches
  • Hole Diameter
    Between 0.050 inches and 0.060 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Head Minor Diameter
    Between 0.360 inches and 0.375 inches
  • End Application
    Pacer dawn
  • Thread Diameter
    0.3125 inches
  • Grip Length
    Between 0.802 inches and 0.822 inches
  • Hole Quantity
    4
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    24
  • Hardness Rating
    46.0 rockwell c and 50.0 rockwell c
  • Hole Configuration Style
    Spline
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel
  • Material Specification
    Ams 6487 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Mil-c-8837, type ii, class 2 military 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 5306013347915

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21297H05013 Military Standards
Stock Check
Availability for this item was last checked on 09/15/21. The quantities and conditions available at the time were:
  • NE: 28