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NSN 5305-01-021-6843

High Torque Screw

About this product

0.620 inches fastener length, between 0.1860 inches and 0.1870 inches grip diameter, 0.190 inches thread diameter, thready qty per inch (tpi): 32.

Manufacturer part number 121B132H01 for national stock number 5305010216843.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-021-6843.

  • MPN or Model

    121B132H01

  • 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
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    0.500 inches
  • Fastener Length
    0.620 inches
  • Grip Diameter
    Between 0.1860 inches and 0.1870 inches
  • Thread Diameter
    0.190 inches
  • Thready Qty Per Inch (tpi)
    32
  • Material
    Steel comp 303
  • Material Specification
    Qq-s-764 cond a federal specification single material response
  • Thread Series Designator
    Unf
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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 5305010216843

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
121B132H01 Northrop Grumman Systems Corporation
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