1AN91

View detailed technical data, stock status, and sourcing information for: 1AN91
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Federal Supply Group

Hand Tools

Federal Supply Classification

5120 Nonpowered Nonedged Hand Tools

National Stock Number

5120-01-428-4724

Item Name Code

03518

Assigment Date

03/27/1996 (30 years ago)

An item having an internal drive at one end made to fit into the external drive end of a socket wrench handle, torque wrench, or power driven tool. The opposite end consists of various internal wrench shapes such as hexagon or square. It may include an integral universal joint.

1.750 inches nominal overall length, 1.188 inches nominal single end wrenching surface size, 6 point single end internal wrenching surface shape, 0.500 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: 1.750 inches nominal
Wrenching Surface Size: 1.188 inches nominal single end
Drive Surface Size: 0.500 inches nominal single end
Features Provided: manual tool
Wrenching Surface Shape: 6 point single end internal
Drive End Shape: square single end internal
Special Features: standard length
Material: steel overall
Surface Treatment: chromium overall
Style Designator: internal-internal
Specification/Standard Data: 05047-asme b107.110 cat 1 professional/industrial association standard
Nondefinitive Spec/Std Data: 1 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5120-01-335-0787	No Name Available	09/01/2010
5120-01-648-4563	No Name Available	04/01/2023
5120-01-650-1310	No Name Available	04/01/2023

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
1AN91	Socket Wrench Socket
5438H	Socket Wrench Socket
J5438H	Socket Wrench Socket
TW381	Socket Wrench Socket
ZHVY0159	Socket Wrench Socket

FAQs

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

What is the FSCG of the NSN 5120-01-428-4724?

The FSCG of the NSN 5120-01-428-4724 is 5120

Does the NSN 5120-01-428-4724 have a Schedule B code assigned?

Yes, the Schedule B code is 8204200000

Does NSN 5120-01-428-4724 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 5120-01-428-4724 contain precious materials?

Item does not contain precious metal.

Does NSN 5120-01-428-4724 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 5120-01-428-4724 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Wed, Mar 27, 1996