1AK21

View detailed technical data, stock status, and sourcing information for: 1AK21
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Federal Supply Group

Hand Tools

Federal Supply Classification

5120 Nonpowered Nonedged Hand Tools

National Stock Number

5120-01-399-9550

Item Name Code

03518

Assigment Date

12/07/1994 (31 years ago)

1.047 inches nominal overall length, 0.438 inches nominal single end wrenching surface size, 12 point single end internal wrenching surface shape, 0.375 inches nominal single end drive surface size, manual tool features provided

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 1.047 inches nominal
Wrenching Surface Size: 0.438 inches nominal single end
Drive Surface Size: 0.375 inches nominal single end
Features Provided: manual tool
Wrenching Surface Shape: 12 point single end internal
Drive End Shape: square single end internal
Material: steel overall
Surface Treatment: oxide overall
Style Designator: internal-internal

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5120-01-595-1007	No Name Available	11/01/2011

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
1AK21	Socket Wrench Socket
5214B	Socket Wrench Socket
J5214B	Socket Wrench Socket

FAQs

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

What is the FSCG of the NSN 5120-01-399-9550?

The FSCG of the NSN 5120-01-399-9550 is 5120

Does the NSN 5120-01-399-9550 have a Schedule B code assigned?

Yes, the Schedule B code is 8204200000

Does NSN 5120-01-399-9550 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 5120-01-399-9550 contain precious materials?

Item does not contain precious metal.

Does NSN 5120-01-399-9550 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 5120-01-399-9550 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Dec 7, 1994