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NSN 5305-01-495-0587

High Torque Screw

About this product

Between 0.6255 inches and 0.6755 inches fastener length, fillister countersunk head style, 0.339 inches head diameter, head height: 0.015 inches .

Manufacturer part number NAS1790-3R5 for national stock number 5305014950587.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-495-0587.

  • MPN or Model

    NAS1790-3R5

  • 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
    0.288 inches
  • Fastener Length
    Between 0.6255 inches and 0.6755 inches
  • Head Style
    Fillister countersunk
  • Head Diameter
    0.339 inches
  • Head Height
    0.015 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Point Style
    Flat
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.3025 inches and 0.3225 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp 4140 or steel comp 4340 or steel comp 8740
  • Material Specification
    Mil-s-5626 military specification 1st material response or ams6415 assn standard 2nd material response or mil-s-6049 military specification 3rd material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, ty2cl2 federal specification single treatment response
  • 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 5305014950587

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1790-3R5 National Aerospace Standards
NAS1790-3R5 National Aerospace Standards
NAS1790-3R5 National Aerospace Standards
NAS1790-3R5 National Aerospace Standards
NAS1790-3R5 National Aerospace Standards
NAS1790-3R5 National Aerospace Standards
NAS1790-3R5 National Aerospace Standards
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