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NSN 5305-00-121-7745

High Torque Screw

About this product

Between 1.073 inches and 1.103 inches fastener length, flat chamfer head style, between 0.306 inches and 0.313 inches head diameter, head height: between 0.103 inches and 0.118 inches .

Manufacturer part number 7S32-3A12H for national stock number 5305001217745.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-121-7745.

  • MPN or Model

    7S32-3A12H

  • 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 0.313 inches and 0.363 inches
  • Fastener Length
    Between 1.073 inches and 1.103 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.306 inches and 0.313 inches
  • Head Height
    Between 0.103 inches and 0.118 inches
  • Hole Diameter
    0.046 inches
  • Locking Feature
    Pellet threads or strip threads or patch threads
  • 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 0.740 inches and 0.760 inches
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hole Configuration Style
    Round
  • Material
    Steel comp 4130
  • Material Specification
    Mil-s-6758, cond d4 military specification single material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 3 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 5305001217745

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
7S32-3A12H Boeing Company, The
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