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NSN 5305-01-231-2209

High Torque Screw

About this product

Identify w/green dye or paint on thread end.

Manufacturer part number BACB30LH3-32 for national stock number 5305012312209.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-231-2209.

  • MPN or Model

    BACB30LH3-32

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.345 inches
  • Fastener Length
    Between 2.330 inches and 2.360 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.337 inches and 0.383 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Single Shear Strength
    95000 pounds per square inch
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 1.990 inches and 2.010 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Iron alloy 660
  • Material Specification
    Ams 5737 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type ii, class 2 federal specification single treatment response
  • Thread Series Designator
    Unjs
  • Specification Data
    81205-bacb30lh manufacturers standard
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Close Tolerance Screw

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Mechanic Bill explains High Torque Screw

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NSN 5305012312209

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30LH3-32 The Boeing Company
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