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NSN 5305-01-131-8168

High Torque Screw

About this product

Furnish with one o ring.

Manufacturer part number HT8137-4-15AS for national stock number 5305011318168.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-131-8168.

  • MPN or Model

    HT8137-4-15AS

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.442 inches and 0.509 inches
  • Fastener Length
    Between 1.390 inches and 1.437 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 0.928 inches and 0.948 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    100.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Nas 621 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 5305011318168

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT8137-4-15AS Arconic Global Fasteners & Rings,
BM33024V4-15U Huck International, Inc.
HT271A4-15 Hi-shear Corporation
110179-4-15AS Sps Technologies, Llc
HT271A4-15 Lisi Aerospace Canada Corp
110179-4-15AS Sps Technologies Ltd Tj Brooks
ST3M430V4-15AS Boeing Company, The
HT8137-4-15AS Alcoa Global Fasteners, Inc.
ST3M430V4-15AS Alcoa Global Fasteners, Inc.
BM33024V4-15U Huck Intl Inc
10115295 Nimikkeistokeskus Ncb Finland
Stock Check
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