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NSN 5305-01-019-0841

High Torque Screw

About this product

Between 2.376 inches and 2.406 inches fastener length, flat countersunk head style, between 0.752 inches and 0.762 inches head diameter, grip diameter: between 0.3740 inches and 0.3745 inches .

Manufacturer part number ST3M680-6D30 for national stock number 5305010190841.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-019-0841.

  • MPN or Model

    ST3M680-6D30

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.516 inches
  • Fastener Length
    Between 2.376 inches and 2.406 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.752 inches and 0.762 inches
  • Grip Diameter
    Between 0.3740 inches and 0.3745 inches
  • Shank Unthreaded Hole Diameter
    0.106 inches first hole and 0.111 inches first hole
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 1.865 inches and 1.885 inches
  • Thready Qty Per Inch (tpi)
    24
  • Countersink Angle
    100.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.261 inches first hole and 2.281 inches first hole
  • Material
    Stainless steel
  • Surface Treatment
    Passivate
  • 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 5305010190841

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M680-6D30 Boeing Company, The
HT4036-6D30 Hi-shear Corporation
HT4036-6D30 Sps Technologies, Llc
HT4036-6D30 Alcoa Global Fasteners, Inc.
HT4036-6D30 Lisi Aerospace Canada Corp
HT4036-6D30 Huck International, Inc.
HT4036-6D30 Alcoa Fastening Systems
HT4036-6D30 Sps Technologies, Llc
HT4036-6D30 Satair A/s
HT4036-6D30 Huck Intl Inc
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