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NSN 5305-01-495-5165

High Torque Screw

About this product

1.328 inches fastener length, flat countersunk head style, between 0.513 inches and 0.566 inches head diameter, grip diameter: between 0.3735 inches and 0.3745 inches .

Manufacturer part number NAS1996-12DT for national stock number 5305014955165.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-495-5165.

  • MPN or Model

    NAS1996-12DT

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.578 inches
  • Fastener Length
    1.328 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.513 inches and 0.566 inches
  • Grip Diameter
    Between 0.3735 inches and 0.3745 inches
  • Shank Unthreaded Hole Diameter
    0.106 inches first hole and 0.116 inches first hole
  • Internal Drive Style
    Offset cruciform (torque set)
  • End Application
    C5 acft
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 0.740 inches and 0.760 inches
  • Thready Qty Per Inch (tpi)
    24
  • Hardness Rating
    39.0 rockwell c and 43.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.131 inches first hole
  • Material
    Steel comp 4140 or steel comp 4340 or steel comp 8740
  • Material Specification
    Mil-s-5625 military specification single material response or mil-s-5000 military specification single material response or mil-s-6049 military specification single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type 2, 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 5305014955165

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Manufacturer Part Numbers and Alternates
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NAS1996-12DT National Aerospace Standards
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