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NSN 5305-00-518-5304

High Torque Screw

About this product

Between 2.370 inches and 2.417 inches fastener length, flat countersunk head style, between 0.797 inches and 0.842 inches head diameter, grip diameter: between 0.5605 inches and 0.5615 inches .

Manufacturer part number HT9C30D for national stock number 5305005185304.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-518-5304.

  • MPN or Model

    HT9C30D

  • 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 0.485 inches and 0.552 inches
  • Fastener Length
    Between 2.370 inches and 2.417 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.797 inches and 0.842 inches
  • Grip Diameter
    Between 0.5605 inches and 0.5615 inches
  • Shank Unthreaded Hole Diameter
    0.140 inches first hole
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.562 inches
  • Grip Length
    Between 1.865 inches and 1.885 inches
  • Thready Qty Per Inch (tpi)
    18
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.246 inches first hole and 2.293 inches first hole
  • Surface Finish
    32.0 microinches threads
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp 431
  • Material Specification
    Aisi assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Passivate 258, fscm 73197 mfr ref 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 5305005185304

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT9C30D Hi-shear Corporation
HT9C30D Hi-shear Corporation
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