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NSN 5305-01-521-9165

High Torque Screw

About this product

Between 1.141 inches and 1.171 inches fastener length, fillister countersunk head style, between 0.2966 inches and 0.3016 inches head diameter, head height: 0.013 inches .

Manufacturer part number ST3M557-3-12 for national stock number 5305015219165.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-521-9165.

  • MPN or Model

    ST3M557-3-12

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.381 inches and 0.431 inches
  • Fastener Length
    Between 1.141 inches and 1.171 inches
  • Head Style
    Fillister countersunk
  • Head Diameter
    Between 0.2966 inches and 0.3016 inches
  • Head Height
    0.013 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    High-torque
  • End Application
    Fwd fuselage
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.740 inches and 0.760 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Nickel alloy 718
  • Material Specification
    Ams5662 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment 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 5305015219165

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M557-3-12 Boeing Company, The
HT4027-3-12 Arconic Global Fasteners & Rings,
ST3M557-3-12 Arconic Global Fasteners & Rings,
HT4027-3-12 Sps Technologies, Llc
ST3M557-3-12 Twist Tite Mfg, Inc
ST3M557-3-12 Valley-todeco, Inc.
ST3M557-3-12 Sps Technologies, Llc
ST3M557-3-12 Saturn Fasteners Inc
ST3M557-3-12 Heartland Precision Fasteners, Inc.
ST3M557-3-12 Huck International, Inc.
ST3M557-3-12 Houston Precision Fasteners I, Lp
ST3M557-3-12 Sps Technologies, Llc
ST3M557-3-12 Camcar Llc
ST3M557-3-12 Fastener Innovation Technology, Inc.
ST3M557-3-12 Reid Products Inc.
ST3M557-3-12 West Coast Aerospace Inc
ST3M557-3-12 Hi-shear Corporation
ST3M557-3-12 Sps Technologies, Llc
ST3M557-3-12 Alcoa Global Fasteners, Inc.
ST3M557-3-12 Linread Ltd
Stock Check
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