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NSN 5305-01-261-0804

High Torque Screw

About this product

Between 1.381 inches and 1.431 inches fastener length, oval countersunk head style, between 0.469 inches and 0.474 inches head diameter, grip diameter: between 0.3115 inches and 0.3120 inches .

Manufacturer part number HT4028L5-14 for national stock number 5305012610804.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-261-0804.

  • MPN or Model

    HT4028L5-14

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.496 inches and 0.566 inches
  • Fastener Length
    Between 1.381 inches and 1.431 inches
  • Head Style
    Oval countersunk
  • Head Diameter
    Between 0.469 inches and 0.474 inches
  • Grip Diameter
    Between 0.3115 inches and 0.3120 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 0.865 inches and 0.885 inches
  • Thready Qty Per Inch (tpi)
    24
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams 4967 assn standard single material response or ams 4928 assn standard single material 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 5305012610804

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT4028L5-14 Arconic Global Fasteners & Rings,
HT4028L5-14 Hi-shear Corporation
HT4028L5-14 Sps Technologies, Llc
HT4028L5-14 Lisi Aerospace Canada Corp
HT4028L5-14 Alcoa Global Fasteners, Inc.
HT4028L5-14 Sps Technologies, Llc
HT4028L5-14 Hi-shear Corporation
HT4028L5-14 Alcoa Global Fasteners, Inc.
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