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NSN 5305-01-338-7306

High Torque Screw

About this product

Between 0.390 inches and 0.437 inches fastener length, flat countersunk head style, between 0.3765 inches and 0.3813 inches head diameter, grip diameter: between 0.1890 inches and 0.1895 inches .

Manufacturer part number CHT4020-3-4A for national stock number 5305013387306.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-338-7306.

  • MPN or Model

    CHT4020-3-4A

  • 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 0.130 inches and 0.197 inches
  • Fastener Length
    Between 0.390 inches and 0.437 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.3765 inches and 0.3813 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.240 inches and 0.260 inches
  • Features Provided
    Cetyl alcohol lubricant and o ring
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
  • Material
    Stainless steel
  • Material Specification
    23-112, ty c cagec 76301 mfr ref single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Thread Series Designator
    Unjf
More from these suppliers
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 5305013387306

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
CHT4020-3-4A Alcoa Global Fasteners, Inc.
CHT4020-3-4A Deutsch Co The
CHT4020-3-4A Sps Technologies, Llc
ST3M652C3-4A Boeing Company, The
HT4020-3-4A Arconic Global Fasteners & Rings,
HT4020-3-4A Alcoa Global Fasteners, Inc.
HT4020-3-4A Hi-shear Corporation
HT4020-3-4A Sps Technologies, Llc
HT4020-3-4A Huck International, Inc.
ST3M652C3-4A Fastener Innovation Technology, Inc.
WC4020-3-4A West Coast Aerospace Inc
HT4020-3-4A Lisi Aerospace Canada Corp
HT4020-3-4A Huck Intl Inc
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