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NSN 5305-01-495-3249

High Torque Screw

About this product

Between 1.360 inches and 1.390 inches fastener length, flat countersunk head style, between 0.625 inches and 0.635 inches head diameter, grip diameter: between 0.311 inches and 0.312 inches .

Manufacturer part number NAS1155V16P for national stock number 5305014953249.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-495-3249.

  • MPN or Model

    NAS1155V16P

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.354 inches
  • Fastener Length
    Between 1.360 inches and 1.390 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.625 inches and 0.635 inches
  • Grip Diameter
    Between 0.311 inches and 0.312 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 0.990 inches and 1.101 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams4967 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, ty2cl2 federal specification 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 5305014953249

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1155V16P National Aerospace Standards
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