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NSN 5305-01-540-0990

High Torque Screw

About this product

Cruciform recess;self locking andnon locking;unplated.

Manufacturer part number NAS7802U2 for national stock number 5305015400990.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-540-0990.

  • MPN or Model

    NAS7802U2

  • 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
    0.323 inches
  • Fastener Length
    0.448 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.306 inches and 0.322 inches
  • Head Height
    Between 0.105 inches and 0.115 inches
  • Grip Diameter
    Between 0.1630 inches and 0.1635 inches
  • Internal Drive Style
    Cruciform ribbed
  • End Application
    Apache attack helicopter
  • Thread Diameter
    0.1640 inches
  • Grip Length
    0.125 inches
  • Thready Qty Per Inch (tpi)
    32
  • Part Name Assigned By Controlling Agency
    Bolt, pan head, close tolerance
  • Material
    Stainless steel
  • Surface Treatment
    Passivate
  • 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 5305015400990

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS7802U2 National Aerospace Standards
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