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NSN 5306-00-159-2661

Close Tolerance Hex Head Bolt

About this product

Between 1.593 inches and 1.640 inches fastener length, double hexagon head style, 0.187 inches head height, width between flats: between 0.492 inches and 0.502 inches .

Manufacturer part number 68485-5A020 for national stock number 5306001592661.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-159-2661.

  • MPN or Model

    68485-5A020

  • 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.)
    0.3 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.343 inches and 0.390 inches
  • Fastener Length
    Between 1.593 inches and 1.640 inches
  • Head Style
    Double hexagon
  • Head Height
    0.187 inches
  • Width Between Flats
    Between 0.492 inches and 0.502 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Thread Diameter
    0.312 inches
  • Grip Length
    1.250 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    156000 pounds per square inch
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel
  • Material Specification
    H-11, stsbs001, lockheed aircraft corporation mfr ref single material response
  • Surface Treatment
    Nickel and cadmium and chromate
  • 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 5306001592661

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
68485-5A020 Sps Technologies, Llc
11701A05U020 Reid Products Inc.
68485-5A020 Sps Technologies, Llc
STSBG001A05U020 Sps Technologies, Llc
STSBG001A05U020 Sps Technologies, Llc
STSBG001A05U020 Sonic Industries Inc.
STSBG001A05U020 Sps Technologies, Llc
STSBG001A05U020 Lockheed Martin Corporation
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