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NSN 5305-01-526-4138

High Torque Screw

About this product

Between 2.136 inches and 2.166 inches fastener length, pan head style, between 0.256 inches and 0.270 inches head diameter, head height: between 0.087 inches and 0.097 inches .

Manufacturer part number NAS7701-30 for national stock number 5305015264138.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-526-4138.

  • MPN or Model

    NAS7701-30

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.276 inches
  • Fastener Length
    Between 2.136 inches and 2.166 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.256 inches and 0.270 inches
  • Head Height
    Between 0.087 inches and 0.097 inches
  • Grip Diameter
    Between 0.136 inches and 0.137 inches
  • Internal Drive Style
    Cross recess type 1
  • End Application
    C-17 acft
  • Thread Diameter
    0.138 inches
  • Grip Length
    Between 1.865 inches and 1.885 inches
  • Thready Qty Per Inch (tpi)
    32
  • Part Name Assigned By Controlling Agency
    Screw close tolerance
  • Material
    Steel comp 4140
  • 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 5305015264138

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS7701-30 National Aerospace Standards
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