BM55156-8-21A

View detailed technical data, stock status, and sourcing information for: BM55156-8-21A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-944-7535

Item Name Code

15903

Assigment Date

03/01/1966 (60 years ago)

1.874 inches nominal fastener length, 0.561 inches minimum thread length, right-hand thread direction, double hexagon head style, 3a thread class

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: 0.561 inches minimum
Fastener Length: 1.874 inches nominal
Head Style: double hexagon
Head Height: 0.281 inches nominal
Width Between Flats: 0.741 inches minimum and 0.752 inches maximum
Grip Diameter: 0.4982 inches minimum and 0.4991 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 1.312 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 260000 pounds per square inch
Hardness Rating: 51.0 rockwell c minimum and 54.0 rockwell c maximum overall
Material: steel overall
Material Document And Classification: sps-m-107,fscm 03680 mfr ref single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed 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
AIC260-8A21	Shear Bolt
AIC516C-8-21	Shear Bolt
BM55156-8-21A	Shear Bolt
EWSB26-8A21	Shear Bolt
GB511C8-21	Shear Bolt
VS2106-8-21	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-944-7535?

The FSCG of the NSN 5306-00-944-7535 is 5306

Does the NSN 5306-00-944-7535 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-944-7535 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 5306-00-944-7535 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-944-7535 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 5306-00-944-7535 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Tue, Mar 1, 1966