MB155-5-6

View detailed technical data, stock status, and sourcing information for: MB155-5-6
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-196-3172

Item Name Code

27851

Assigment Date

12/11/1984 (41 years ago)

3a thread class, 0.441 inches minimum and 0.510 inches maximum thread length, 0.826 inches minimum and 0.875 inches maximum fastener length, spline drive shear head head style, 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: 0.441 inches minimum and 0.510 inches maximum
Fastener Length: 0.826 inches minimum and 0.875 inches maximum
Head Style: spline drive shear head
Head Height: 0.187 inches nominal
Grip Diameter: 0.3115 inches minimum and 0.3120 inches maximum
Head Minor Diameter: 0.514 inches minimum and 0.521 inches maximum
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.365 inches minimum and 0.385 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 125000 pounds per square inch
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-321-9295	No Name Available	04/01/2002

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
10116139	Close Tolerance Bolt
122896-5-6	Close Tolerance Bolt
AIC688-5-6	Close Tolerance Bolt
GS1031-5-6	Close Tolerance Bolt
MB155-5-6	Close Tolerance Bolt
PBF1266-5-6	Close Tolerance Bolt
S397-5-6	Close Tolerance Bolt
ST3M747-5-6	Close Tolerance Bolt
VCG0002-5-6	Close Tolerance Bolt
VS3191-5-6	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-196-3172?

The FSCG of the NSN 5306-01-196-3172 is 5306

Does the NSN 5306-01-196-3172 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-196-3172 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 5306-01-196-3172 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-196-3172 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 5306-01-196-3172 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Tue, Dec 11, 1984