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NSN 5305-01-642-8659

High Torque Screw

About this product

Offset cruciform recess iaw nasm33781 or nasm14191;head marked with basic part number,applicable dash number,mfg trade mark and matl code where applicable;heat treat 160-190 ksi ftu.

Manufacturer part number NAS1134E22 for national stock number 5305016428659.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-642-8659.

  • MPN or Model

    NAS1134E22

  • 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
    0.316 inches
  • Fastener Length
    Between 1.676 inches and 1.706 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.473 inches and 0.492 inches
  • Head Height
    Between 0.162 inches and 0.175 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.2500 inches
  • Grip Length
    1.375 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    5820 pounds per square inch
  • Surface Finish
    32.0 microinches threads
  • Part Name Assigned By Controlling Agency
    Screw, machine, pan head, close tolerance, short thread, offset cruciform
  • Material
    Stainless steel
  • Material Specification
    A286 iaw ams5731, 5732, 5737 or 5853 national standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Ams2700, method 1, class 4 national standard single treatment response
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas1131 through nas1138 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 5305016428659

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1134E22 National Aerospace Standards
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