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NSN 5305-01-507-1040

High Torque Screw

About this product

1.276 inches fastener length, pan head style, 0.270 inches head diameter, head height: 0.097 inches .

Manufacturer part number NAS1171-15K for national stock number 5305015071040.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-507-1040.

  • MPN or Model

    NAS1171-15K

  • 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
    0.338 inches
  • Fastener Length
    1.276 inches
  • Head Style
    Pan
  • Head Diameter
    0.270 inches
  • Head Height
    0.097 inches
  • Grip Diameter
    0.242 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.138 inches
  • Grip Length
    0.938 inches
  • Thready Qty Per Inch (tpi)
    32
  • Material
    Steel comp 4140 fastener or steel comp 4340 fastener or steel comp e4340 fastener
  • 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 5305015071040

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1171-15K National Aerospace Standards
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