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NSN 5305-01-022-1955

High Torque Screw

About this product

Between 3.698 inches and 3.728 inches fastener length, flat countersunk head style, between 0.296 inches and 0.331 inches head diameter, grip diameter: between 0.1630 inches and 0.1635 inches .

Manufacturer part number LS15235-08-55 for national stock number 5305010221955.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-022-1955.

  • MPN or Model

    LS15235-08-55

  • 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
    Between 0.251 inches and 0.301 inches
  • Fastener Length
    Between 3.698 inches and 3.728 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.296 inches and 0.331 inches
  • Grip Diameter
    Between 0.1630 inches and 0.1635 inches
  • Internal Drive Style
    W/o internal drive
  • Thread Diameter
    0.164 inches
  • Grip Length
    Between 3.427 inches and 3.447 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    36.0 rockwell c and 40.0 rockwell c
  • Countersink Angle
    100.0 degrees
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp e4340 or steel comp 4340 or steel comp 8740
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2, cl 2 federal specification single treatment response
  • Thread Series Designator
    Unjc
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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 5305010221955

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
LS15235-08-55 Lockheed Martin Corporation
LS15235-08-55 Lockheed Martin Corporation
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