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NSN 5305-01-048-6098

High Torque Screw

About this product

Between 1.312 inches and 1.359 inches fastener length, flat countersunk head style, between 0.662 inches and 0.668 inches head diameter, grip diameter: between 0.4360 inches and 0.4370 inches .

Manufacturer part number 51B581-7-14H for national stock number 5305010486098.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-048-6098.

  • MPN or Model

    51B581-7-14H

  • 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 0.427 inches and 0.494 inches
  • Fastener Length
    Between 1.312 inches and 1.359 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.662 inches and 0.668 inches
  • Grip Diameter
    Between 0.4360 inches and 0.4370 inches
  • Shank Unthreaded Hole Diameter
    0.096 inches first hole and 0.116 inches first hole
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.438 inches
  • Grip Length
    Between 0.865 inches and 0.885 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 43.0 rockwell c
  • Countersink Angle
    100.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.204 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp e4340 or steel comp 4340 or steel comp 4140 or steel comp 8740
  • Surface Treatment
    Cadmium and chromate or cadmium
  • Thread Series Designator
    Unjf
  • Specification Data
    76823-51b58 professional/industrial association standard
More from these suppliers
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 5305010486098

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
51B581-7-14H Northrop Grumman Technical Services,
51B581-7-14H Northrop Grumman Systems Corporation
51B581-7-14H Arconic Global Fasteners & Rings,
51B581-7-14H Sps Technologies, Llc
51B581-7-14H Hi-shear Corporation
51B581-7-14H Sps Technologies, Llc
51B581-7-14H Alcoa Global Fasteners, Inc.
51B581-7-14H Lisi Aerospace Canada Corp
51B581-7-14H Sps Technologies, Llc
51B581-7-14H Northrop Grumman Systems Corporation
Stock Check
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