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NSN 5305-01-521-0068

High Torque Screw

About this product

Between 1.123 inches and 1.155 inches fastener length, flat countersunk head style, 0.809 inches head diameter, grip diameter: 0.451 inches .

Manufacturer part number BACB30ZC7-11X for national stock number 5305015210068.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-521-0068.

  • MPN or Model

    BACB30ZC7-11X

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.453 inches
  • Fastener Length
    Between 1.123 inches and 1.155 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.809 inches
  • Grip Diameter
    0.451 inches
  • Internal Drive Style
    High-torque
  • End Application
    B-52 acft
  • Thread Diameter
    0.4285 inches
  • Grip Length
    Between 0.677 inches and 0.697 inches
  • Thready Qty Per Inch (tpi)
    20
  • Countersink Angle
    100.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt
  • Material
    Steel comp 4340
  • Surface Treatment
    Cadmium
  • Thread Series Designator
    Unjf
More from these suppliers
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 5305015210068

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30ZC7-11X The Boeing Company
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