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NSN 5306-01-124-3634

Close Tolerance Hex Head Bolt

About this product

Color white.

Manufacturer part number MS14157-04024 for national stock number 5306011243634.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-124-3634.

  • MPN or Model

    MS14157-04024

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.555 inches and 0.595 inches
  • Fastener Length
    Between 2.065 inches and 2.085 inches
  • Head Style
    Spline extended washer
  • Head Height
    Between 0.240 inches and 0.260 inches
  • Width Between Flats
    Between 0.373 inches and 0.381 inches
  • Extended Washer Diameter
    Between 0.428 inches and 0.438 inches
  • Extended Washer Thickness
    Between 0.035 inches and 0.055 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.490 inches and 1.510 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 43.0 rockwell c
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp 8740 or steel comp e4340
  • Material Specification
    Mil-s-6049 military specification 1st material response or mil-s-5000 military specification 2nd material response
  • Surface Treatment
    Paint top of head
  • Surface Treatment Specification
    Tt-e-489, no. 17875 federal specification single treatment response top of head
  • 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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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS14157-04024 National Aerospace Standards
MS14157-04024 Military Standards
Stock Check
Availability for this item was last checked on 11/29/21. The quantities and conditions available at the time were:
  • NS: 8
  • NE: 1681