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NSN 5305-01-475-7970

High Torque Screw

About this product

1.425 inches fastener length, pan no. 2 head style, between 0.360 inches and 0.374 inches head diameter, head height: between 0.115 inches and 0.125 inches .

Manufacturer part number NAS1578C3T17 for national stock number 5305014757970.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-475-7970.

  • MPN or Model

    NAS1578C3T17

  • 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
    0.363 inches
  • Fastener Length
    1.425 inches
  • Head Style
    Pan no. 2
  • Head Diameter
    Between 0.360 inches and 0.374 inches
  • Head Height
    Between 0.115 inches and 0.125 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • End Application
    Fixed wing aircraft, c130j hercules, lockheed martin corp
  • Thread Diameter
    0.190 inches
  • Grip Length
    1.062 inches
  • Thready Qty Per Inch (tpi)
    32
  • 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 5305014757970

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1578C3T17 National Aerospace Standards
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