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NSN 5305-00-460-0109

High Torque Screw

About this product

Between 0.551 inches and 0.581 inches fastener length, flat countersunk head style, 0.399 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .

Manufacturer part number BACB30DP4-4 for national stock number 5305004600109.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-460-0109.

  • MPN or Model

    BACB30DP4-4

  • 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)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.291 inches and 0.341 inches
  • Fastener Length
    Between 0.551 inches and 0.581 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.399 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.240 inches and 0.260 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 100.0 degrees
  • Surface Finish
    63.0 microinches bearing surface of head
  • Material
    Stainless steel
  • 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 5305004600109

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30DP4-4 The Boeing Company
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