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NSN 5306-01-481-3014

Close Tolerance Hex Head Bolt

About this product

Between 1.631 inches and 1.678 inches fastener length, spline drive shear head head style, 0.164 inches head height, grip diameter: between 0.422 inches and 0.446 inches .

Manufacturer part number ST3M747-4-20 for national stock number 5306014813014.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-481-3014.

  • MPN or Model

    ST3M747-4-20

  • 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
    0.397 inches
  • Fastener Length
    Between 1.631 inches and 1.678 inches
  • Head Style
    Spline drive shear head
  • Head Height
    0.164 inches
  • Grip Diameter
    Between 0.422 inches and 0.446 inches
  • Head Minor Diameter
    Between 0.522 inches and 0.531 inches
  • End Application
    F18 e/f
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.240 inches and 1.260 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Criticality Code Justification
    Agav
  • Part Name Assigned By Controlling Agency
    Bolt, close tolerance, spline drive, cres (125 ksi fsu)
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Ams 5629 assn standard 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 5306014813014

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M747-4-20 Fastener Innovation Technology, Inc.
ST3M747-4-20 Boeing Company, The
S397-4-20 Huck International, Inc.
AIC688-4-20 Sps Technologies, Llc
122896-4-20 Sps Technologies Inc
ST3M747-4-20 Fastener Innovation Technology, Inc.
ST3M747-4-20 Boeing Company, The
S397-4-20 Huck International, Inc.
VCG0002-4-20 Valley-todeco, Inc.
HP7747-4-20 Heartland Precision Fasteners, Inc.
SLB254-4-20 Space-lok, Inc.
GS1031-4-20 B & B Specialties Inc.
PBF1266-4-20 Sps Technologies, Llc
122896-4-20 Sps Technologies, Llc
MB155-4-20 Hi-shear Corporation
122896-4-20 Sps Technologies, Llc
AIC688-4-20 Sps Technologies, Llc
ST3M747-4-20 Houston Precision Fasteners I, Lp
122896-4-20 Sps Technologies Inc
ST3M747-4-20 Fastener Innovation Technology, Inc.
ST3M747-4-20 Boeing Company, The
S397-4-20 Huck International, Inc.
VCG0002-4-20 Valley-todeco, Inc.
HP7747-4-20 Heartland Precision Fasteners, Inc.
SLB254-4-20 Space-lok, Inc.
GS1031-4-20 B & B Specialties Inc.
PBF1266-4-20 Sps Technologies, Llc
122896-4-20 Sps Technologies, Llc
MB155-4-20 Hi-shear Corporation
122896-4-20 Sps Technologies, Llc
AIC688-4-20 Sps Technologies, Llc
ST3M747-4-20 Houston Precision Fasteners I, Lp
122896-4-20 Sps Technologies Inc
Stock Check
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