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NSN 5305-00-901-4418

High Torque Screw

About this product

Retaining element in shank.

Manufacturer part number CA4850-04-27 for national stock number 5305009014418.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-901-4418.

  • MPN or Model

    CA4850-04-27

  • 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
    0.428 inches
  • Fastener Length
    2.116 inches
  • Head Style
    Crowned hexagon
  • Head Height
    Between 0.126 inches and 0.141 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2487 inches and 0.2492 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.086 inches first hole
  • Internal Drive Style
    Slot
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.688 inches and 1.704 inches
  • Thready Qty Per Inch (tpi)
    28
  • Hardness Rating
    39.0 rockwell c and 45.0 rockwell c
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.011 inches first hole and 2.031 inches first hole
  • Surface Finish
    32.0 microinches threads
  • Material
    Steel comp 4340 or steel comp 8740
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2, class 3 federal specification 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 5305009014418

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
CA4850-04-27 Arconic Global Fasteners & Rings,
VP1072-4-27 Alcoa Global Fasteners, Inc.
202-15500-4-27 Triumph Aerostructures, Llc
Stock Check
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