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NSN 5305-01-498-6689

High Torque Screw

About this product

Between 1.459 inches and 1.479 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 NAS1578C6T14 for national stock number 5305014986689.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-498-6689.

  • MPN or Model

    NAS1578C6T14

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.594 inches
  • Fastener Length
    Between 1.459 inches and 1.479 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
    0.374 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • End Application
    F-22 raptor
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 0.865 inches and 0.885 inches
  • Thready Qty Per Inch (tpi)
    24
  • Part Name Assigned By Controlling Agency
    Bolt
  • Material
    Iron alloy 660
  • Material Specification
    Ams 5731 national std/spec single material response or ams 5732 national std/spec single material response or ams 5737 national std/spec single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Ams qq-p-35 national std/spec 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 5305014986689

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1578C6T14 National Aerospace Standards
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