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NSN 5306-00-479-0260

Close Tolerance Hex Head Bolt

About this product

Between 1.027 inches and 1.074 inches fastener length, double hexagon head style, 0.164 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number BM3200-4A012 for national stock number 5306004790260.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-479-0260.

  • MPN or Model

    BM3200-4A012

  • 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 0.267 inches and 0.334 inches
  • Fastener Length
    Between 1.027 inches and 1.074 inches
  • Head Style
    Double hexagon
  • Head Height
    0.164 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.740 inches and 0.760 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    132000 pounds per square inch
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp h11
  • Surface Treatment
    Nickel and cadmium and chromate
  • Surface Treatment Specification
    Stsbs000 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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NSN 5306004790260

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BM3200-4A012 Huck International, Inc.
VS2978A04U012 Arconic Global Fasteners & Rings,
68484-4A12 Sps Technologies, Llc
VAL23611-4D012 Valley-todeco, Inc.
AIC2263A04U012 Sps Technologies, Llc
PBF1041A4U012 Sps Technologies, Llc
STSBG000A04U012 Sps Technologies, Llc
11797A04U012 Reid Products Inc.
STSBG000A04U012 Alcoa Global Fasteners, Inc.
STSBG000A04U012 Lockheed Martin Corporation
BM3200-4A012 Huck Intl Inc
VS2978A04U012 Alcoa Global Fasteners, Inc.
68484-4A12 Sps Technologies, Llc
68484-4A012 Sps Technologies, Llc
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