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NSN 5305-01-528-1090

High Torque Screw

About this product

Between 2.128 inches and 2.158 inches fastener length, flat countersunk head style, between 0.951 inches and 1.014 inches head diameter, grip diameter: 0.499 inches .

Manufacturer part number NAS1580V8T22 for national stock number 5305015281090.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-528-1090.

  • MPN or Model

    NAS1580V8T22

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.743 inches and 0.793 inches
  • Fastener Length
    Between 2.128 inches and 2.158 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.951 inches and 1.014 inches
  • Grip Diameter
    0.499 inches
  • Point Length
    0.080 inches
  • Point Style
    Flat
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.500 inches
  • Grip Length
    1.375 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    25600 pounds per square inch
  • Countersink Angle
    100.0 degrees
  • Point Chamfer Angle
    45.0 degrees
  • Material
    Titanium alloy
  • Material Specification
    Ams 4967 assn standard single material 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 5305015281090

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1580V8T22 National Aerospace Standards
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