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NSN 5306-01-337-5956

Close Tolerance Hex Head Bolt

About this product

Between 0.901 inches and 0.931 inches fastener length, double hexagon head style, between 0.271 inches and 0.291 inches head height, width between flats: between 0.741 inches and 0.752 inches .

Manufacturer part number BACB30UU8-6 for national stock number 5306013375956.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-337-5956.

  • MPN or Model

    BACB30UU8-6

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.541 inches
  • Fastener Length
    Between 0.901 inches and 0.931 inches
  • Head Style
    Double hexagon
  • Head Height
    Between 0.271 inches and 0.291 inches
  • Width Between Flats
    Between 0.741 inches and 0.752 inches
  • Grip Diameter
    Between 0.4990 inches and 0.4995 inches
  • Thread Diameter
    0.500 inches
  • Grip Length
    Between 0.365 inches and 0.385 inches
  • Thready Qty Per Inch (tpi)
    20
  • Surface Finish
    32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
  • Material
    Nickel alloy 718
  • Material Specification
    Ams 5662 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 5306013375956

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30UU8-6 Huck International, Inc.
BACB30UU8-6 The Boeing Company
BACB30UU8-6 Huck Intl Inc
BACB30UU8-6 Federal Manufacturing Corporation
BACB30UU8-6 Sps Technologies, Llc
BACB30UU8-6 Valley-todeco, Inc.
BACB30UU8-6 Sps Technologies, Llc
BACB30UU8-6 Alcoa Global Fasteners, Inc.
BACB30UU8-6 Sps Technologies, Llc
BACB30UU8-6 Sonic Industries Inc.
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