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NSN 5305-01-546-4121

High Torque Screw

About this product

T20 torx size.

Manufacturer part number 120-276C3T19P for national stock number 5305015464121.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-546-4121.

  • MPN or Model

    120-276C3T19P

  • 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 1.449 inches and 1.496 inches
  • Head Style
    Round extended washer
  • Head Diameter
    0.375 inches
  • Head Height
    Between 0.089 inches and 0.099 inches
  • Extended Washer Diameter
    0.437 inches
  • Extended Washer Thickness
    Between 0.025 inches and 0.030 inches
  • Spline Major Diameter
    0.155 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Internal Drive Style
    Torx
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 1.173 inches and 1.203 inches
  • Thready Qty Per Inch (tpi)
    32
  • Material
    Stainless steel
  • Surface Treatment
    Cadmium
  • 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 5305015464121

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
120-276C3T19P Bell Helicopter Textron Inc.
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