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NSN 5305-00-351-4521

High Torque Screw

About this product

Retaining element in shank.

Manufacturer part number CA2720-4-0594 for national stock number 5305003514521.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-351-4521.

  • MPN or Model

    CA2720-4-0594

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.421 inches and 0.453 inches
  • Fastener Length
    Between 1.124 inches and 1.144 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.568 inches and 0.635 inches
  • Grip Diameter
    Between 0.2480 inches and 0.2492 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.584 inches and 0.604 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    100.0 degrees
  • Material
    Iron alloy 660 or steel comp 303 or steel comp 303se or steel comp 303 plus x
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Thread Series Designator
    Unf
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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 5305003514521

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
CA2720-4-0594 Arconic Global Fasteners & Rings,
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