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NSN 5305-01-197-9419

High Torque Screw

About this product

Internal drive ribbed.

Manufacturer part number T181-2408 for national stock number 5305011979419.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-197-9419.

  • MPN or Model

    T181-2408

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.400 inches and 0.450 inches
  • Fastener Length
    Between 0.910 inches and 0.940 inches
  • Head Style
    Oval countersunk
  • Head Diameter
    Between 0.390 inches and 0.395 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.490 inches and 0.510 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy
  • Material Specification
    Ams 4967, comp 6al-4v assn standard single material 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 5305011979419

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
T181-2408 Huck International, Inc.
SC1786RV4-08 Arconic Global Fasteners & Rings,
PBF1383-2408 Sps Technologies, Llc
123179V4R08 Sps Technologies, Llc
LE111-0041-2408 Service-sales Industries Inc
LE111-0041-2408 Sonic Industries Inc.
LE111-0041-2408 Boeing Company, The
T181-2408 Huck Intl Inc
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