MB61-3-16

View detailed technical data, stock status, and sourcing information for: MB61-3-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-133-2193

Item Name Code

27851

Assigment Date

06/11/1982 (44 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.

double hexagon head style, 1.315 inches minimum and 1.362 inches maximum fastener length, 3a thread class, 0.305 inches minimum and 0.372 inches maximum thread 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: 0.305 inches minimum and 0.372 inches maximum
Fastener Length: 1.315 inches minimum and 1.362 inches maximum
Head Style: double hexagon
Head Height: 0.130 inches minimum and 0.150 inches maximum
Width Between Flats: 0.367 inches minimum and 0.376 inches maximum
Grip Diameter: 0.1890 inches minimum and 0.1895 inches maximum
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Thread Quantity Per Inch: 32
Material: steel overall
Material Document And Classification: 23-112 fscm 76301 mfr ref single material response overall
Thread Series Designator: unjf

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
109453-3-16	Close Tolerance Bolt
11825-3-16	Close Tolerance Bolt
AIC753-3-16	Close Tolerance Bolt
AIC753-4-10	Close Tolerance Bolt
BM17019-3-16	Close Tolerance Bolt
GS1016-3-16	Close Tolerance Bolt
KS3020-3-16	Close Tolerance Bolt
KS3020-4-10	Close Tolerance Bolt
MA5453-3-16	Close Tolerance Bolt
MA5453-4-10	Close Tolerance Bolt
MB61-3-16	Close Tolerance Bolt
PBF1253-3-16	Close Tolerance Bolt
PBF1253-4-10	Close Tolerance Bolt
S11-1060-3-16	Close Tolerance Bolt
S11-1060-4-10	Close Tolerance Bolt
S353-3-16	Close Tolerance Bolt
S353-4-10	Close Tolerance Bolt
ST3M453-3-16	Close Tolerance Bolt
VAL23029-3-16	Close Tolerance Bolt
VS3204-3-16	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-133-2193?

The FSCG of the NSN 5306-01-133-2193 is 5306

Does the NSN 5306-01-133-2193 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-133-2193 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 5306-01-133-2193 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-133-2193 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 5306-01-133-2193 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Fri, Jun 11, 1982