21-1541

View detailed technical data, stock status, and sourcing information for: 21-1541

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21-1541
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-276-8470
Item Name Code
01847
Assigment Date
01/01/1963 (63 years ago)

hexagon head style, 2a thread class, 1.375 inches nominal fastener length, 1.375 inches minimum 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
2a
Thread Direction
right-hand
Thread Length
1.375 inches minimum
Fastener Length
1.375 inches nominal
Head Style
hexagon
Head Height
0.312 inches nominal
Width Between Flats
0.625 inches nominal
Nominal Thread Diameter
0.438 inches
Features Provided
finished head
Thread Quantity Per Inch
14
Hardness Rating
92.0 rockwell b minimum and 100.0 rockwell b maximum overall
Minimum Yield Strength
65000 pounds per square inch
Material
steel comp 1035 overall
Material Document And Classification
sae assn std single material response overall
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5306-00-281-8292 No Name Available 06/01/2013
5305-00-367-2186 No Name Available 10/18/1967

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
21-1541 Machine Bolt
21-1541P Machine Bolt
8N6065A Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-276-8470?
The FSCG of the NSN 5306-00-276-8470 is 5306
Does the NSN 5306-00-276-8470 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-276-8470 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 5306-00-276-8470 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-276-8470 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 5306-00-276-8470 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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