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NSN 5305-00-842-1641

High Torque Screw

About this product

Retaining element in shank.

Manufacturer part number AS104-05-12 for national stock number 5305008421641.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-842-1641.

  • MPN or Model

    AS104-05-12

  • 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 0.312 inches and 0.332 inches
  • Fastener Length
    1.290 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.436 inches and 0.437 inches
  • Head Height
    Between 0.253 inches and 0.273 inches
  • Grip Diameter
    Between 0.3112 inches and 0.3117 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.086 inches first hole
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 0.750 inches and 0.790 inches
  • Width Across Flats
    Between 0.210 inches and 0.221 inches
  • Thready Qty Per Inch (tpi)
    24
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.144 inches first hole
  • Material
    Steel comp 630
  • Material Specification
    Fms 0131 fscm 81755 mfr ref single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Zc00035 fsmc 29372 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 5305008421641

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
AS104-05-12 Avibank Mfg., Inc.
CA2730-5-12 Arconic Global Fasteners & Rings,
CC00035-5-12 Lockheed Martin Corporation
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