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NSN 5305-00-113-6216

High Torque Screw

About this product

Between 0.323 inches and 0.353 inches fastener length, flat countersunk head style, between 0.270 inches and 0.302 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .

Manufacturer part number 7S37S3A1 for national stock number 5305001136216.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-113-6216.

  • MPN or Model

    7S37S3A1

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.251 inches and 0.301 inches
  • Fastener Length
    Between 0.323 inches and 0.353 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.270 inches and 0.302 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.052 inches and 0.072 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    190000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches grip
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel
  • Material Specification
    Lb0160-133 fscm 43999 mfr ref single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    La0110-006 fscm 43999 mfr ref 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 5305001136216

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
7S37S3A1 Boeing Company, The
7S37S3A1 Boeing Company, The
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