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NSN 5305-01-167-2408

High Torque Screw

About this product

Between 1.734 inches and 1.781 inches fastener length, flat countersunk head style, between 0.578 inches and 0.635 inches head diameter, grip diameter: between 0.3110 inches and 0.3120 inches .

Manufacturer part number 51B335-22 for national stock number 5305011672408.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-167-2408.

  • MPN or Model

    51B335-22

  • 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 0.349 inches and 0.416 inches
  • Fastener Length
    Between 1.734 inches and 1.781 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.578 inches and 0.635 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 1.365 inches and 1.385 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 43.0 rockwell c
  • Countersink Angle
    Between 70.0 degrees and 130.0 degrees
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp e4340 or steel comp 4140 or steel comp 8740
  • Material Specification
    Mil-s-5000 military specification 1st material response or mil-s-5626 military specification 2nd material response or mil-s-6049 military specification 3rd material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2 class 2 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 5305011672408

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
51B335-22 Northrop Grumman Technical Services,
51B335-22 Huck International, Inc.
51B335-22 Sps Technologies, Llc
51B335-22 Arconic Global Fasteners & Rings,
51B335-22 Sps Technologies, Llc
51B335-22 Hi-shear Corporation
51B335-22 Sps Technologies, Llc
51B335-22 Alcoa Global Fasteners, Inc.
51B335-22 Lisi Aerospace Canada Corp
51B335-22 Huck Intl Inc
51B335-22 Northrop Grumman Systems Corporation
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