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NSN 5306-00-503-5721

Close Tolerance Hex Head Bolt

About this product

Between 1.500 inches and 1.547 inches fastener length, double hexagon head style, 0.281 inches head height, width between flats: between 0.741 inches and 0.752 inches .

Manufacturer part number 68485-8A16 for national stock number 5306005035721.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-503-5721.

  • MPN or Model

    68485-8A16

  • 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 0.500 inches and 0.547 inches
  • Fastener Length
    Between 1.500 inches and 1.547 inches
  • Head Style
    Double hexagon
  • Head Height
    0.281 inches
  • Width Between Flats
    Between 0.741 inches and 0.752 inches
  • Grip Diameter
    Between 0.4985 inches and 0.4995 inches
  • Thread Diameter
    0.500 inches
  • Grip Length
    1.000 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    156000 pounds per square inch
  • Surface Finish
    32.0 microinches grip
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp h11
  • Material Specification
    Ams 6487 assn standard single material response
  • Surface Treatment
    Nickel and cadmium and chromate
  • Surface Treatment Specification
    Stsbs001 fscm 98897 mfr ref 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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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
68485-8A16 Sps Technologies, Llc
11701A08U016 Reid Products Inc.
STSBG001A08U016 Lockheed Martin Corporation
VAL23602-8D016 Valley-todeco, Inc.
AIC2264A08U016 Sps Technologies, Llc
PBF1042A8U016 Sps Technologies, Llc
VS2979A08U016 Arconic Global Fasteners & Rings,
BM3210-8A016 Huck International, Inc.
BM3210-8A016 Huck Intl Inc
VS2979A08U016 Alcoa Global Fasteners, Inc.
68485-8A16 Sps Technologies Inc
68485-8A16 Sps Technologies, Llc
VAL23602-8D016 Valley-todeco, Inc.
AIC2264A08U016 Sps Technologies, Llc
PBF1042A8U016 Sps Technologies, Llc
STSBG001A08U016 Lockheed Martin Corporation
68485-8A16 Sps Technologies Inc
VS2979A08U016 Alcoa Global Fasteners, Inc.
BM3210-8A016 Huck Intl Inc
Stock Check
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