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NSN 5306-01-280-6736

Close Tolerance Hex Head Bolt

About this product

Between 1.505 inches and 1.525 inches fastener length, spline drive shear head head style, 0.257 inches head height, grip diameter: between 0.4365 inches and 0.4370 inches .

Manufacturer part number ST3M744-7-17 for national stock number 5306012806736.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-280-6736.

  • MPN or Model

    ST3M744-7-17

  • 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 0.430 inches and 0.473 inches
  • Fastener Length
    Between 1.505 inches and 1.525 inches
  • Head Style
    Spline drive shear head
  • Head Height
    0.257 inches
  • Grip Diameter
    Between 0.4365 inches and 0.4370 inches
  • Head Minor Diameter
    Between 0.711 inches and 0.717 inches
  • Thread Diameter
    0.438 inches
  • Grip Length
    Between 1.052 inches and 1.072 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Material
    Steel comp xm-13
  • Material Specification
    Ams5629 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 5306012806736

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M744-7-17 Boeing Company, The
VS3174-7-17 Arconic Global Fasteners & Rings,
S406-7-17 Huck International, Inc.
11823-7-17 Reid Products Inc.
VCG0001-7-17 Valley-todeco, Inc.
AIC687-7-17 Sps Technologies, Llc
PBF1265-7-17 Sps Technologies, Llc
MB154-7-17 Hi-shear Corporation
122895-7-17 Sps Technologies, Llc
MB154-7-17 Lisi Aerospace Canada Corp
S406-7-17 Huck Intl Inc
10116197 Nimikkeistokeskus Ncb Finland
VS3174-7-17 Alcoa Global Fasteners, Inc.
Stock Check
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