BM5526-6-21

View detailed technical data, stock status, and sourcing information for: BM5526-6-21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-487-4777

Item Name Code

15903

Assigment Date

06/11/1969 (57 years ago)

0.682 inches minimum and 0.732 inches maximum thread length, 3a thread class, right-hand thread direction, 2.005 inches minimum and 2.035 inches maximum fastener length, double hexagon w/hole head style

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: 0.682 inches minimum and 0.732 inches maximum
Fastener Length: 2.005 inches minimum and 2.035 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.405 inches nominal
Width Between Flats: 0.492 inches minimum and 0.502 inches maximum
Extended Washer Diameter: 0.715 inches minimum and 0.725 inches maximum
Extended Washer Thickness: 0.075 inches nominal
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Nominal Thread Diameter: 0.375 inches
Grip Length: 1.303 inches minimum and 1.323 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 260000 pounds per square inch
Hardness Rating: 51.0 rockwell c minimum and 54.0 rockwell c maximum overall
Material: steel comp h11 overall
Material Document And Classification: ams 6485 assn std single material response or ams6487 assn std single material response overall
Surface Treatment: cadmium overall
Thread Series Designator: unjf
Specification/Standard Data: 56878-ewb26 manufacturers standard

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
AIC260E6-21	Shear Bolt
BM5526-6-21	Shear Bolt
C305-6-21	Shear Bolt
C306-6-21	Shear Bolt
EWB26-6-21	Shear Bolt
HE111-0034-0621	Shear Bolt
VS2005-6-21	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-487-4777?

The FSCG of the NSN 5306-00-487-4777 is 5306

Does the NSN 5306-00-487-4777 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-487-4777 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 5306-00-487-4777 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-487-4777 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 5306-00-487-4777 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Jun 11, 1969