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NSN 5305-01-132-0514

High Torque Screw

About this product

Furnish with one o ring.

Manufacturer part number HT8137-4-18AS for national stock number 5305011320514.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-132-0514.

  • MPN or Model

    HT8137-4-18AS

  • 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 0.443 inches and 0.510 inches
  • Fastener Length
    Between 1.578 inches and 1.625 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 1.115 inches and 1.135 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    100.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Nas621 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 5305011320514

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT8137-4-18AS Arconic Global Fasteners & Rings,
HT271A4-18 Hi-shear Corporation
110179-4-18AS Sps Technologies, Llc
BM33024V4-18U Huck International, Inc.
HT271A4-18 Lisi Aerospace Canada Corp
110179-4-18AS Sps Technologies Ltd Tj Brooks
HT8137-4-18AS Alcoa Global Fasteners, Inc.
ST3M430V4-18AS Alcoa Global Fasteners, Inc.
ST3M430V4-18AS Boeing Company, The
BM33024V4-18U Huck Intl Inc
10115305 Nimikkeistokeskus Ncb Finland
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