NSN 5305-00-143-3377
High Torque Screw
Aluminum grommet .012 in. Thk on bearing surface of head.
Manufacturer part number 51B293-9 for national stock number 5305001433377.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-143-3377.
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MPN or Model
51B293-9
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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 0.219 inches and 0.317 inches -
Fastener Length
Between 0.822 inches and 0.869 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.375 inches and 0.387 inches -
Grip Diameter
Between 0.1885 inches and 0.1895 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.190 inches -
Grip Length
Between 0.553 inches and 0.573 inches -
Thready Qty Per Inch (tpi)
32 -
Min. Tensile Strength (psi)
180000 pounds per square inch -
Countersink Angle
100.0 degrees -
Surface Finish
32.0 microinches grip -
Material
Steel comp e4340 or steel comp 4340 or steel comp 8740 or steel comp 6150 or steel comp 4140 -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, type 2 cl 3 federal specification single treatment response -
Thread Series Designator
Unf
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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.
Pricing and Availability
Get a quote for 5305-00-143-3377 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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51B293-9 | Northrop Grumman Technical Services, |
51B293-9 | Northrop Grumman Systems Corporation |