1AL64

View detailed technical data, stock status, and sourcing information for: 1AL64
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Federal Supply Group

Hand Tools

Federal Supply Classification

5120 Nonpowered Nonedged Hand Tools

National Stock Number

5120-01-399-9979

Item Name Code

52399

Assigment Date

12/07/1994 (31 years ago)

An attachment designed to fit over the square external drive end of a handle, socket wrench; wrench, torque; and the like consisting of one or two-piece configuration having a screw driving tip on one end. Excludes:bit, screwdriver.

1.625 inches nominal blade length, manual tool and replaceable bit features provided, 0.156 inches nominal single end wrenching surface size, 0.375 inches nominal single end drive surface size, 2.688 inches nominal overall length

Product Characteristics

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

Overall Length: 2.688 inches nominal
Blade Length: 1.625 inches nominal
Wrenching Surface Size: 0.156 inches nominal single end
Drive Surface Size: 0.375 inches nominal single end
Features Provided: manual tool and replaceable bit
Wrenching Surface Shape: hexagon single end external
Material: steel overall
Surface Treatment: chromium drive surface
Surface Treatment: oxide bit
Style Designator: hexagon

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5120-01-593-0592	No Name Available	09/01/2017
5120-01-652-1132	Socket Wr Screwdriver Attachment	06/01/2025

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
1AL64	Socket Wr Screwdriver Attachment
4990-5/32	Socket Wr Screwdriver Attachment
J49905/32	Socket Wr Screwdriver Attachment
STP 49905/32	Socket Wr Screwdriver Attachment

FAQs

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

What is the FSCG of the NSN 5120-01-399-9979?

The FSCG of the NSN 5120-01-399-9979 is 5120

Does the NSN 5120-01-399-9979 have a Schedule B code assigned?

Yes, the Schedule B code is 8204200000

Does NSN 5120-01-399-9979 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 5120-01-399-9979 contain precious materials?

Item does not contain precious metal.

Does NSN 5120-01-399-9979 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 5120-01-399-9979 was assigned to the Federal Catalog?

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