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NSN 5305-00-605-0821

High Torque Screw

About this product

Between 1.808 inches and 1.838 inches fastener length, flat countersunk head style, between 0.531 inches and 0.558 inches head diameter, grip diameter: between 0.3110 inches and 0.3120 inches .

Manufacturer part number C387H5-22 for national stock number 5305006050821.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-605-0821.

  • MPN or Model

    C387H5-22

  • 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 0.423 inches and 0.473 inches
  • Fastener Length
    Between 1.808 inches and 1.838 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.531 inches and 0.558 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 1.365 inches and 1.385 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    220000 pounds per square inch
  • Countersink Angle
    Between 45.0 degrees and 75.0 degrees
  • Material
    Steel comp h11
  • Material Specification
    Ams6485 assn standard single material response
  • Surface Treatment
    Nickel and cadmium
  • Surface Treatment Specification
    Ams2416 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 5305006050821

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
C387H5-22 Lockheed Martin Corporation
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