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NSN 5305-01-183-8740

High Torque Screw

About this product

Between 0.600 inches and 0.630 inches fastener length, flat countersunk head style, between 0.456 inches and 0.508 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .

Manufacturer part number 3M964-4L3 for national stock number 5305011838740.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-183-8740.

  • MPN or Model

    3M964-4L3

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Unit Weight (Est.)
    0.3 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.402 inches and 0.452 inches
  • Fastener Length
    Between 0.600 inches and 0.630 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.456 inches and 0.508 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.178 inches and 0.198 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Ams 4967 comp 6al-4v assn standard single material response
  • Surface Treatment
    Aluminum
  • Surface Treatment Specification
    Ps13143, type 2 cl 3, fscm 76301 mfr ref 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 5305011838740

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
3M964-4L3 Boeing Company, The
3M964-4-3 Sps Technologies, Llc
3M964-4-3 Sps Technologies, Llc
3M964-4L3 Huck International, Inc.
3M964-4L3 Sps Technologies, Llc
3M964-4L3 Arconic Global Fasteners & Rings,
3M964-4L3 Hi-shear Corporation
3M964-4L3 Sps Technologies, Llc
3M964-4L3 Lisi Aerospace Canada Corp
3M964-4L3 Huck Intl Inc
3M964-4-3 Arconic Global Fasteners & Rings,
3M964-4-3 Hi-shear Corporation
3M964-4-3 Alcoa Global Fasteners, Inc.
3M964-4L3 Alcoa Global Fasteners, Inc.
3M964-4-3 Boeing Company, The
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