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NSN 5305-01-480-2083

High Torque Screw

About this product

A-286 corrosion resistant steel;point is flat and chamfered.

Manufacturer part number NAS1581C8H62 for national stock number 5305014802083.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-480-2083.

  • MPN or Model

    NAS1581C8H62

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.768 inches
  • Fastener Length
    Between 4.628 inches and 4.658 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.6901 inches and 0.7611 inches
  • Grip Diameter
    Between 0.4990 inches and 0.4995 inches
  • Internal Drive Style
    Torque
  • Thread Diameter
    0.5000 inches
  • Grip Length
    Between 3.865 inches and 3.885 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 0.99 degrees and 1.00 degrees
  • Material
    Iron alloy 660
  • Material Specification
    Ams5731 assn standard 1st material response or ams5732 assn standard 2nd material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-416, typeii, class2 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 5305014802083

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1581C8H62 National Aerospace Standards
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