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NSN 5305-01-325-1975

High Torque Screw

About this product

Between 0.848 inches and 0.878 inches fastener length, pan 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 NAS1578V3R8L for national stock number 5305013251975.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-325-1975.

  • MPN or Model

    NAS1578V3R8L

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.363 inches
  • Fastener Length
    Between 0.848 inches and 0.878 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.360 inches and 0.374 inches
  • Head Height
    Between 0.115 inches and 0.125 inches
  • Locking Feature
    Patch threads
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    Torque-set ribbed
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.490 inches and 0.510 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams 4928 assn standard single material response or ams 4967 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 5305013251975

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1578V3R8L National Aerospace Standards
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