BM55156-10-49

View detailed technical data, stock status, and sourcing information for: BM55156-10-49
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-898-9580

Item Name Code

15903

Assigment Date

01/01/1962 (64 years ago)

double hexagon head style, 0.717 inches minimum thread length, right-hand thread direction, 3a thread class, 3.780 inches nominal 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: 0.717 inches minimum
Fastener Length: 3.780 inches nominal
Head Style: double hexagon
Head Height: 0.350 inches nominal
Width Between Flats: 0.928 inches minimum and 0.940 inches maximum
Grip Diameter: 0.6230 inches minimum and 0.6240 inches maximum
Shank Unthreaded Hole Diameter: 0.141 inches nominal first hole
Nominal Thread Diameter: 0.625 inches
Grip Length: 3.062 inches nominal
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 260000 pounds per square inch
Hardness Rating: 51.0 rockwell c minimum and 54.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.575 inches nominal first hole
Part Name Assigned By Controlling Agency: navy special project
Material: steel overall
Material Document And Classification: sps-m-107,fscm 03680 mfr ref single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: mil-c-8837 ty 1 cl 2 mil spec single treatment 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
AIC260-10-49	Shear Bolt
BM55156-10-49	Shear Bolt
EWSB26-10-49	Shear Bolt
VS2106-10S49	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-898-9580?

The FSCG of the NSN 5306-00-898-9580 is 5306

Does the NSN 5306-00-898-9580 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-898-9580 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 5306-00-898-9580 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-898-9580 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 5306-00-898-9580 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962