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NSN 5305-01-499-7554

High Torque Screw

About this product

Between 1.348 inches and 1.378 inches fastener length, pan no. 2 head style, between 0.360 inches and 0.374 inches head diameter, head height: between 0.115 inches and 0.125 inches .

Manufacturer part number NAS1578C3R16 for national stock number 5305014997554.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-499-7554.

  • MPN or Model

    NAS1578C3R16

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.338 inches and 0.388 inches
  • Fastener Length
    Between 1.348 inches and 1.378 inches
  • Head Style
    Pan no. 2
  • Head Diameter
    Between 0.360 inches and 0.374 inches
  • Head Height
    Between 0.115 inches and 0.125 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • End Application
    C-17a acft
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.990 inches and 1.010 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Material
    Iron alloy 660
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas1578 professional/industrial association standard
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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 5305014997554

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1578C3R16 National Aerospace Standards
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