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NSN 5305-01-576-2865

High Torque Screw

About this product

0.838 inches fastener length, flat countersunk head style, 0.339 mils and 0.381 centimeters head diameter, grip diameter: 0.189 inches.

Manufacturer part number NAS1790C-3R8 for national stock number 5305015762865.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-576-2865.

  • MPN or Model

    NAS1790C-3R8

  • 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
    0.338 inches
  • Fastener Length
    0.838 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.339 mils and 0.381 centimeters
  • Grip Diameter
    0.189 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.190 inches
  • Grip Length
    0.500 inches
  • Hole Quantity
    1
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 90.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt, 100 degree flush head
  • Material
    Stainless steel
  • 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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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1790C-3R8 National Aerospace Standards
Stock Check
Availability for this item was last checked on 10/29/20. The quantities and conditions available at the time were:
  • NE: 4949