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NSN 5305-01-355-3673

High Torque Screw

About this product

Between 0.951 inches and 0.998 inches fastener length, flat countersunk head style, between 0.625 inches and 0.635 inches head diameter, grip diameter: between 0.3110 inches and 0.3120 inches .

Manufacturer part number 642AS1004-5 for national stock number 5305013553673.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-355-3673.

  • MPN or Model

    642AS1004-5

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.441 inches and 0.508 inches
  • Fastener Length
    Between 0.951 inches and 0.998 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.625 inches and 0.635 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Internal Drive Style
    Torque-set ribbed
  • Thread Diameter
    0.312 inches
  • Grip Length
    0.490 inches
  • Thready Qty Per Inch (tpi)
    24
  • Hardness Rating
    46.0 rockwell c and 52.0 rockwell c
  • Countersink Angle
    100.0 degrees
  • Material
    Steel comp h11
  • Material Specification
    Ams6487 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Milc8851cl3ty2 military 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 5305013553673

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
642AS1004-5 Naval Air Systems Command
123840-5-8 Sps Technologies, Llc
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