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NSN 5305-01-419-3542

High Torque Screw

About this product

1.526 inches fastener length, between 0.309 inches and 0.331 inches head diameter, between 0.088 inches and 0.102 inches head height, internal drive style: offset cruciform (torque set).

Manufacturer part number NAS1142-20 for national stock number 5305014193542.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-419-3542.

  • MPN or Model

    NAS1142-20

  • 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
    0.276 inches
  • Fastener Length
    1.526 inches
  • Head Diameter
    Between 0.309 inches and 0.331 inches
  • Head Height
    Between 0.088 inches and 0.102 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.164 inches
  • Grip Length
    1.250 inches
  • Thready Qty Per Inch (tpi)
    32
  • Material
    Steel comp 4140 or steel comp 4340 or steel comp 8740
  • Surface Treatment
    Cadmium
  • Thread Series Designator
    Unjc
  • Specification Data
    80205-nas1142 professional/industrial association standard
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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 5305014193542

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1142-20 National Aerospace Standards
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