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NSN 5305-00-498-2819

High Torque Screw

About this product

Hexagon socket in thd 0.1270 in. Min,0.1295 in. Max width across flats,0.775 in. Min,0.815 in. Max lg from bearing surface of head.

Manufacturer part number HR112-4-9 for national stock number 5305004982819.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-498-2819.

  • MPN or Model

    HR112-4-9

  • 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 0.490 inches and 0.530 inches
  • Fastener Length
    Between 0.910 inches and 0.930 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.492 inches and 0.512 inches
  • Grip Diameter
    Between 0.2483 inches and 0.2492 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.400 inches and 0.420 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    220000 pounds per square inch
  • Hardness Rating
    46.0 rockwell c and 50.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Steel comp h11
  • Material Specification
    Ams6485 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Nas 672 assn standard single treatment 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 5305004982819

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HR112-4-9 Hi-shear Corporation
HR112-4-9 Lisi Aerospace Canada Corp
C3606-9 Sps Technologies, Llc
C3606-9 Alcoa Global Fasteners, Inc.
C3606-9 Lockheed Martin Corporation
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