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NSN 5305-01-623-8408

High Torque Screw

About this product

Item furnished with one 0.076 inch drilled cotter pin hole 0.170 inch from tip; surface texture for grip dia, conical surface of head, thread flanks and thread root is 32 microinches, all other surfaces is at 125 microinches.

Manufacturer part number NAS8604D10 for national stock number 5305016238408.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-623-8408.

  • MPN or Model

    NAS8604D10

  • 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
    0.370 inches
  • Fastener Length
    Between 0.980 inches and 1.110 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.355 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Single Shear Strength
    95000 pounds per square inch
  • Internal Drive Style
    Cross recess type 1
  • End Application
    Aircraft, a-10 wrp
  • Thread Diameter
    0.250 inches
  • Grip Length
    0.562 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt, 100 degrees reduced head, phillips recess, close tolerance, alloy steel, short thread
  • Material
    Steel comp 4340 or steel comp 8740
  • Material Specification
    Mil-s-5000 military specification single material response or mil-s-6049 military specification single material response or ams6322 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, ty ii, cl 2 federal specification 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 5305016238408

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS8604D10 National Aerospace Standards
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