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3M33-3-13A

View detailed technical data, stock status, and sourcing information for: 3M33-3-13A

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3M33-3-13A
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-059-1204
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.

right-hand thread direction, 0.381 inches minimum and 0.448 inches maximum thread length, hexagon head style, 3a thread class, 1.203 inches minimum and 1.250 inches maximum fastener length

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
0.381 inches minimum and 0.448 inches maximum
Fastener Length
1.203 inches minimum and 1.250 inches maximum
Head Style
hexagon
Head Height
0.109 inches minimum and 0.141 inches maximum
Width Between Flats
0.365 inches minimum and 0.377 inches maximum
Grip Diameter
0.1889 inches minimum and 0.1894 inches maximum
Nominal Thread Diameter
0.190 inches
Grip Length
0.802 inches minimum and 0.822 inches maximum
Thread Quantity Per Inch
32
Minimum Tensile Strength
130000 pounds per square inch
Hardness Rating
248.0 brinell standard minimum and 341.0 brinell standard maximum overall
Surface Finish
32.0 microinches grip
Material
iron alloy 660 overall
Material Document And Classification
ams 5735 assn std single material response 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
3M33-3-13A Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-059-1204?
The FSCG of the NSN 5306-00-059-1204 is 5306
Does the NSN 5306-00-059-1204 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-059-1204 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 5306-00-059-1204 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-059-1204 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 5306-00-059-1204 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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