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NSN 5305-01-623-3917

High Torque Screw

About this product

0.650 inches fastener length, flat countersunk head style, between 0.2534 inches and 0.2612 inches head diameter, grip diameter: between 0.1621 inches and 0.1625 inches .

Manufacturer part number NAS1992-5T for national stock number 5305016233917.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-623-3917.

  • MPN or Model

    NAS1992-5T

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.338 inches
  • Fastener Length
    0.650 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.2534 inches and 0.2612 inches
  • Grip Diameter
    Between 0.1621 inches and 0.1625 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.1640 inches
  • Grip Length
    0.312 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel
  • Surface Treatment
    Cadmium
  • Thread Series Designator
    Unjc
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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 5305016233917

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1992-5T National Aerospace Standards
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