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NSN 5305-01-538-4369

High Torque Screw

About this product

Furnished with one o-ring seal. Shank and threads have dry film lubricant applied, reply code lbg000 not listed this fiig.

Manufacturer part number ST3M430V4-5ASM for national stock number 5305015384369.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-538-4369.

  • MPN or Model

    ST3M430V4-5ASM

  • Schedule B
    8108.90.8000 (Other wrought titanium, nesoi)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.443 inches and 0.510 inches
  • Fastener Length
    Between 0.765 inches and 0.812 inches
  • Head Style
    Flat countersunk undercut
  • Head Diameter
    Between 0.502 inches and 0.507 inches
  • Head Height
    Between 0.071 inches and 0.073 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.302 inches and 0.322 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.5 degrees and 100.5 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Nas621 comp 6al-4v assn standard single material response or ams4928 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 5305015384369

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M430V4-5ASM Boeing Company, The
ST3M430V4-5ASM Arconic Global Fasteners & Rings,
ST3M430V4-5ASM Huck International, Inc.
ST3M430V4-5ASM Houston Precision Fasteners I, Lp
ST3M430V4-5ASM Plastic Sealing Corp
WC8137-5-4AM West Coast Aerospace Inc
ST3M430V4-5ASM Hi-shear Corporation
ST3M430V4-5ASM Sps Technologies, Llc
ST3M430V4-5ASM Sps Technologies Ltd Tj Brooks
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