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NSN 5305-01-188-5783

High Torque Screw

About this product

Between 0.433 inches and 0.463 inches fastener length, flat countersunk head style, 0.381 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .

Manufacturer part number NAS4403-2 for national stock number 5305011885783.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-188-5783.

  • MPN or Model

    NAS4403-2

  • 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
    0.323 inches
  • Fastener Length
    Between 0.433 inches and 0.463 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.381 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    Tri-wing recess
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.115 inches and 0.135 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp 4340 or steel comp 8740
  • Material Specification
    Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416a, type 2, class 2 federal specification all treatment responses
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas4403 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 5305011885783

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS4403-2 National Aerospace Standards
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