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NSN 5305-01-524-1521

High Torque Screw

About this product

0.813 inches fastener length, round extended washer head style, 0.375 inches head diameter, head height: 0.094 inches .

Manufacturer part number 120-225-3-11 for national stock number 5305015241521.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-524-1521.

  • MPN or Model

    120-225-3-11

  • 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
    0.430 inches
  • Fastener Length
    0.813 inches
  • Head Style
    Round extended washer
  • Head Diameter
    0.375 inches
  • Head Height
    0.094 inches
  • Extended Washer Diameter
    0.437 inches
  • Extended Washer Thickness
    0.027 inches
  • Grip Diameter
    0.189 inches
  • Internal Drive Style
    Cruciform ribbed
  • End Application
    Support of pre-provisioning items for which navicp phil acts as poe (e-nsn isil)
  • Thread Diameter
    0.190 inches
  • Grip Length
    0.250 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    2000 pounds per square inch
  • Criticality Code Justification
    Agav
  • Part Name Assigned By Controlling Agency
    Screw, washer head, close tolerance, long thread, 95 ksi fsu
  • Material
    Steel comp 4340
  • Material Specification
    Ams6415 assn standard 1st material response or mil-s-6049 military specification 2nd material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type 2, class2 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 5305015241521

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
120-225-3-11 Bell Helicopter Textron Inc.
120-225-3-11 Sps Technologies, Llc
120-225-3-11 Heartland Precision Fasteners, Inc.
120-225-3-11 Sps Technologies, Llc
120-225-3-11 Sps Technologies, Llc
120-225-3-11 Lfc Industries Inc.
120-225-3-11 Sps Technologies, Llc
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