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NSN 5305-01-528-1072

High Torque Screw

About this product

Between 1.798 inches and 1.828 inches fastener length, flat countersunk head style, between 0.578 inches and 0.633 inches head diameter, grip diameter: 0.312 inches .

Manufacturer part number NAS1580V5H21 for national stock number 5305015281072.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-528-1072.

  • MPN or Model

    NAS1580V5H21

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.476 inches and 0.526 inches
  • Fastener Length
    Between 1.798 inches and 1.828 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.578 inches and 0.633 inches
  • Grip Diameter
    0.312 inches
  • Point Length
    0.060 inches
  • Point Style
    Flat
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.312 inches
  • Grip Length
    1.312 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    9260 pounds per square inch
  • Countersink Angle
    100.0 degrees
  • Point Chamfer Angle
    45.0 degrees
  • Material
    Titanium alloy
  • 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 5305015281072

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1580V5H21 National Aerospace Standards
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