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NSN 5305-01-188-5170

High Torque Screw

About this product

Between 1.017 inches and 1.047 inches fastener length, pan no. 2 head style, between 0.722 inches and 0.740 inches head diameter, head height: between 0.206 inches and 0.220 inches .

Manufacturer part number NAS1578V6T7 for national stock number 5305011885170.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-188-5170.

  • MPN or Model

    NAS1578V6T7

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.569 inches and 0.619 inches
  • Fastener Length
    Between 1.017 inches and 1.047 inches
  • Head Style
    Pan no. 2
  • Head Diameter
    Between 0.722 inches and 0.740 inches
  • Head Height
    Between 0.206 inches and 0.220 inches
  • Grip Diameter
    Between 0.3740 inches and 0.3745 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 0.428 inches and 0.448 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Surface Finish
    32.0 microinches threads
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Titanium alloy
  • Material Specification
    Ams4967, com+6al-4v assn standard single material response
  • 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 5305011885170

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1578V6T7 National Aerospace Standards
NAS1578V6T7 National Aerospace Standards
NAS1578V6T7 National Aerospace Standards
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