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3M33-3-33

View detailed technical data, stock status, and sourcing information for: 3M33-3-33

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3M33-3-33
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-059-1203
Item Name Code
27851
Assigment Date
01/01/1961 (65 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

0.407 inches minimum thread length, 3a thread class, hexagon head style, 2.469 inches nominal fastener length, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.407 inches minimum
Fastener Length
2.469 inches nominal
Head Style
hexagon
Head Height
0.125 inches nominal
Width Between Flats
0.375 inches nominal
Grip Diameter
0.1889 inches minimum
Shank Unthreaded Hole Diameter
0.070 inches nominal all holes
Nominal Thread Diameter
0.190 inches
Grip Length
2.062 inches nominal
Thread Quantity Per Inch
32
Distance From Head Largest Bearing Surface To Shank Hole Center
2.328 inches nominal all holes
Part Name Assigned By Controlling Agency
navy special project
Material
steel corrosion resisting overall
Thread Series Designator
unf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
3M33-3-33 Close Tolerance Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-00-059-1203?
The FSCG of the NSN 5306-00-059-1203 is 5306
Does the NSN 5306-00-059-1203 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-059-1203 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5306-00-059-1203 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-00-059-1203 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5306-00-059-1203 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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