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NSN 5305-01-255-9449

High Torque Screw

About this product

Paint color white.

Manufacturer part number ST3M454-3DL6 for national stock number 5305012559449.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-255-9449.

  • MPN or Model

    ST3M454-3DL6

  • 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
    Between 0.381 inches and 0.431 inches
  • Fastener Length
    Between 0.766 inches and 0.796 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.376 inches and 0.385 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Shank Unthreaded Hole Diameter
    0.070 inches first hole and 0.075 inches first hole
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.365 inches and 0.385 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    0.645 inches first hole and 0.685 inches first hole
  • Material
    Steel comp xm-13
  • Material Specification
    Ams5629 assn standard single material response
  • Surface Treatment
    Passivate threads
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response threads
  • 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 5305012559449

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M454-3DL6 Boeing Company, The
HT4025L3D6 Sps Technologies, Llc
ST3M454-3DL6 Valley-todeco, Inc.
HT4025L3D6 Arconic Global Fasteners & Rings,
ST3M454-3DL6 Heartland Precision Fasteners, Inc.
HT4025L3D6 Huck International, Inc.
ST3M454-3DL6 Houston Precision Fasteners I, Lp
HT4025L3D6 Sps Technologies, Llc
ST3M454-3DL6 Fastener Innovation Technology, Inc.
HT4025L3D6 Sps Technologies, Llc
11905-3DL6 Reid Products Inc.
WC4025L-3D6 West Coast Aerospace Inc
HT4025L3D6 Sps Technologies Ltd Tj Brooks
HT4025L3D6 Hi-shear Corporation
HT4025L3D6 Sps Technologies, Llc
HT4025L3D6 Lisi Aerospace Canada Corp
HT4025L3D6 Huck Intl Inc
ST3M454-3DL6 Alcoa Global Fasteners, Inc.
ST3M454-3DL6 Sps Technologies Ltd Tj Brooks
HT4025L3D6 Alcoa Global Fasteners, Inc.
Stock Check
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