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NSN 5305-01-171-8099

High Torque Screw

About this product

Between 4.915 inches and 4.935 inches fastener length, crowned hexagon head style, between 0.157 inches and 0.172 inches head height, width between flats: between 0.492 inches and 0.502 inches .

Manufacturer part number SS5112-571 for national stock number 5305011718099.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-171-8099.

  • MPN or Model

    SS5112-571

  • 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 0.305 inches and 0.356 inches
  • Fastener Length
    Between 4.915 inches and 4.935 inches
  • Head Style
    Crowned hexagon
  • Head Height
    Between 0.157 inches and 0.172 inches
  • Width Between Flats
    Between 0.492 inches and 0.502 inches
  • Locking Feature
    Detent ball grip
  • Grip Diameter
    Between 0.3112 inches and 0.3117 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.086 inches first hole
  • Internal Drive Style
    Slot
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 4.438 inches and 4.454 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    63000 pounds per square inch
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    4.803 inches first hole and 4.823 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal 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 5305011718099

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
SS5112-571 Sikorsky Aircraft Corporation
SS5112-571 Space-lok, Inc.
SS5112-571 Hi-shear Corporation
SS5112-571 Avibank Mfg., Inc.
SS5112-571 Lisi Aerospace Canada Corp
Stock Check
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