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NSN 5305-01-622-4998

High Torque Screw

About this product

Between 0.580 inches and 0.610 inches fastener length, flat countersunk head style, between 0.266 inches and 0.305 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .

Manufacturer part number BACB30ZE3-4 for national stock number 5305016224998.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-622-4998.

  • MPN or Model

    BACB30ZE3-4

  • 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 0.580 inches and 0.610 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.266 inches and 0.305 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.1900 inches
  • Grip Length
    0.25 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Stainless steel
  • Material Specification
    Ams 5737 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Ams-qq-p-416, type 2, class 2 assn standard single treatment response
  • Thread Series Designator
    Unjf
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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 5305016224998

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30ZE3-4 The Boeing Company
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