1-321-802-5889

NSN 5305-01-640-8246

High Torque Screw

About this product

1.113 inches fastener length, flat countersunk head style, between 0.464 inches and 0.506 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .

Manufacturer part number NAS1790V4R11AD for national stock number 5305016408246.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-640-8246.

  • MPN or Model

    NAS1790V4R11AD

  • Schedule B
    8108.90.8000 (Other wrought titanium, nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.425 inches
  • Fastener Length
    1.113 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.464 inches and 0.506 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    0.688 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches
  • Part Name Assigned By Controlling Agency
    Bolt, 100 degree flush head, 160 ksi uts
  • Material
    Titanium alloy uns r56400
  • Surface Treatment
    Aluminum
  • Surface Treatment Specification
    Aluminum coat per nas 4006 assn standard single treatment response
  • Thread Series Designator
    Unjf
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 5305016408246

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1790V4R11AD National Aerospace Standards
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