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NSN 5305-00-184-9451

High Torque Screw

About this product

Between 2.595 inches and 2.605 inches fastener length, between 0.2483 inches and 0.2492 inches grip diameter, hexagon internal drive style, thread diameter: 0.250 inches.

Manufacturer part number LM307-31 for national stock number 5305001849451.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-184-9451.

  • MPN or Model

    LM307-31

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.243 inches and 0.263 inches
  • Fastener Length
    Between 2.595 inches and 2.605 inches
  • Grip Diameter
    Between 0.2483 inches and 0.2492 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 2.295 inches and 2.305 inches
  • Width Across Flats
    Between 0.1572 inches and 0.1592 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Material
    Steel
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    J-1221-18, type 1c fscm 76005 mfr ref single treatment response
  • Thread Series Designator
    Unf
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 5305001849451

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
LM307-31 Lord Corporation
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