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NSN 5305-01-611-4691

High Torque Screw

About this product

Between 0.855 inches and 0.885 inches fastener length, flat countersunk head style, 0.386 millimeters head diameter, grip diameter: between 0.2641 inches and 0.2651 inches .

Manufacturer part number NAS8604-8X for national stock number 5305016114691.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-611-4691.

  • MPN or Model

    NAS8604-8X

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.370 inches
  • Fastener Length
    Between 0.855 inches and 0.885 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.386 millimeters
  • Grip Diameter
    Between 0.2641 inches and 0.2651 inches
  • Single Shear Strength
    95000 pounds per square inch
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.2500 inches
  • Grip Length
    Between 0.490 inches and 0.510 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp e4340 or steel comp 8740
  • Material Specification
    Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type 2, class 2 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 5305016114691

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS8604-8X National Aerospace Standards
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