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NSN 5305-01-193-6845

High Torque Screw

About this product

Cetyl alcohol lubrication,furnished with o ring.

Manufacturer part number WC8137-4-3A for national stock number 5305011936845.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-193-6845.

  • MPN or Model

    WC8137-4-3A

  • 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 0.640 inches and 0.687 inches
  • Head Style
    Flat countersunk undercut
  • Head Diameter
    Between 0.5018 inches and 0.5066 inches
  • Head Height
    Between 0.0713 inches and 0.0733 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    High-torque
  • End Application
    Harrier av-8b aircraft.
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.178 inches and 0.198 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    100.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Ams 4967, comp 6al-4v 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 5305011936845

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
WC8137-4-3A West Coast Aerospace Inc
110179-4-3AS Huck International, Inc.
110179-4-3AS Sps Technologies, Llc
110179-4-3AS Sps Technologies, Llc
HT271A4-3 Hi-shear Corporation
ST3M430V4-3AS Boeing Company, The
HT8137-4-3AS Arconic Global Fasteners & Rings,
BM33024V4-3U Huck International, Inc.
ST3M430V4-3AS Houston Precision Fasteners I, Lp
ST3M430V4-3AS Fastener Innovation Technology, Inc.
ST3M430V4-3AS West Coast Aerospace Inc
ST3M430V4-3AS Sps Technologies Ltd Tj Brooks
HT271A4-3 Lisi Aerospace Canada Corp
BM33024V4-3U Huck Intl Inc
110179-4-3AS Huck Intl Inc
HT8137-4-3AS Alcoa Global Fasteners, Inc.
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