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NSN 5305-01-563-3843

High Torque Screw

About this product

0.951 inches fastener length, oval countersunk head style, 0.564 inches head diameter, grip diameter: 0.374 inches .

Manufacturer part number ST3M557-6-5 for national stock number 5305015633843.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-563-3843.

  • MPN or Model

    ST3M557-6-5

  • 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
    0.641 inches
  • Fastener Length
    0.951 inches
  • Head Style
    Oval countersunk
  • Head Diameter
    0.564 inches
  • Grip Diameter
    0.374 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 0.615 inches and 0.635 inches
  • Thready Qty Per Inch (tpi)
    24
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Nickel alloy 718
  • Surface Treatment
    Passivate
  • Thread Series Designator
    Unjf
More from these suppliers
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 5305015633843

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M557-6-5 Boeing Company, The
HT4027-6-5 Sps Technologies, Llc
ST3M557-6-5 Valley-todeco, Inc.
HT4027-6-5 Arconic Global Fasteners & Rings,
ST3M557-6-5 Saturn Fasteners Inc
ST3M557-6-5 Heartland Precision Fasteners, Inc.
HT4027-6-5 Huck International, Inc.
ST3M557-6-5 Houston Precision Fasteners I, Lp
HT4027-6-5 Sps Technologies, Llc
ST3M557-6-5 Camcar Llc
ST3M557-6-5 Fastener Innovation Technology, Inc.
HT4027-6-5 Sps Technologies, Llc
11923-6-5 Reid Products Inc.
WC4027-6-5 West Coast Aerospace Inc
HT4027-6-5 Hi-shear Corporation
HT4027-6-5 Sps Technologies, Llc
HT4027-6-5 Alcoa Global Fasteners, Inc.
HT4027-6-5 Lisi Aerospace Canada Corp
Stock Check
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