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NSN 5306-01-406-3702

Close Tolerance Hex Head Bolt

About this product

Between 3.394 inches and 3.414 inches fastener length, hexagon head style, between 0.128 inches and 0.141 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number 121673-4-48 for national stock number 5306014063702.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-406-3702.

  • MPN or Model

    121673-4-48

  • 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 0.308 inches and 0.323 inches
  • Fastener Length
    Between 3.394 inches and 3.414 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.128 inches and 0.141 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Locking Feature
    Slotted ring
  • Grip Diameter
    Between 0.2483 inches and 0.2492 inches
  • End Application
    F-15s
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 2.976 inches and 2.992 inches
  • Thready Qty Per Inch (tpi)
    28
  • Hardness Rating
    36.0 rockwell c and 41.0 rockwell c
  • Material
    Steel
  • Material Specification
    Ams5643 assn standard 1st material response ring or ams5673 assn standard 2nd material response ring
  • Surface Treatment
    Passivate ring
  • Surface Treatment Specification
    Qq-p-416, type 2, class 2 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 5306014063702

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
121673-4-48 Sps Technologies, Llc
ST3M735-4-48 Boeing Company, The
ST3M735-4-48 Boeing Company, The
ST3M735-4-48 Boeing Company, The
121673-4-48 Sps Technologies, Llc
ST3M735-4-48 Boeing Company, The
121673-4-48 Sps Technologies, Llc
ST3M735-4-48 Boeing Company, The
121673-4-48 Sps Technologies, Llc
ST3M735-4-48 Boeing Company, The
121673-4-48 Sps Technologies, Llc
ST3M735-4-48 Boeing Company, The
Stock Check
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