NSN 5305-00-083-2143
High Torque Screw
Between 0.595 inches and 0.642 inches fastener length, flat countersunk head style, between 0.325 inches and 0.385 inches head diameter, grip diameter: between 0.1885 inches and 0.1894 inches .
Manufacturer part number 72791H3A6 for national stock number 5305000832143.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-083-2143.
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MPN or Model
72791H3A6
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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 0.210 inches and 0.277 inches -
Fastener Length
Between 0.595 inches and 0.642 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.325 inches and 0.385 inches -
Grip Diameter
Between 0.1885 inches and 0.1894 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.190 inches -
Grip Length
Between 0.365 inches and 0.385 inches -
Thready Qty Per Inch (tpi)
32 -
Min. Tensile Strength (psi)
220000 pounds per square inch -
Hardness Rating
50.0 rockwell c -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Part Name Assigned By Controlling Agency
Navy special project -
Material
Steel comp h11 -
Material Specification
Ams6485 federal specification 1st material response or ams6487 federal specification 2nd material response -
Surface Treatment
Cadmium -
Surface Treatment Specification
Sps-p-671, 50392 mfr ref single treatment response -
Thread Series Designator
Unjf
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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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-00-083-2143 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
72791H3A6 | Sps Technologies, Llc |
GB510AD3A6 | Northrop Grumman Systems Corporation |
72791H3A6 | Sps Technologies Inc |
72791H3A6 | Sps Technologies, Llc |
GB510AD3A6 | Northrop Grumman Systems Corporation |
72791H3A6 | Sps Technologies Inc |
Stock Check
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