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NSN 5305-00-857-1462

High Torque Screw

About this product

Between 0.765 inches and 0.812 inches fastener length, flat countersunk head style, between 0.447 inches and 0.507 inches head diameter, grip diameter: between 0.2483 inches and 0.2492 inches .

Manufacturer part number 1819823 for national stock number 5305008571462.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-857-1462.

  • MPN or Model

    1819823

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093460 - Bolts/nuts NOI Bbc/zinc
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.366 inches and 0.516 inches
  • Fastener Length
    Between 0.765 inches and 0.812 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.447 inches and 0.507 inches
  • Grip Diameter
    Between 0.2483 inches and 0.2492 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.296 inches and 0.328 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    36.0 rockwell c and 40.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel
  • Surface Treatment
    Cadmium
  • Thread Series Designator
    Unf
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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 5305008571462

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
1819823 Navair And Navsea Managed
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