M-4657

View detailed technical data, stock status, and sourcing information for: M-4657
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Federal Supply Group

Hand Tools

Federal Supply Classification

5120 Nonpowered Nonedged Hand Tools

National Stock Number

5120-00-277-1583

Item Name Code

03555

Assigment Date

01/01/1963 (63 years ago)

21.500 inches minimum and 23.500 inches maximum overall length, 1.082 inches nominal large end head thickness, 1.020 inches nominal small end head thickness, 2.365 inches nominal small end outside diameter, 2.615 inches nominal large end outside diameter

Product Characteristics

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

Overall Length: 21.500 inches minimum and 23.500 inches maximum
Large End Outside Diameter: 2.615 inches nominal
Small End Outside Diameter: 2.365 inches nominal
Large End Head Thickness: 1.082 inches nominal
Small End Head Thickness: 1.020 inches nominal
Wrenching Surface Size: 1.438 inches maximum first end
Wrenching Surface Size: 1.625 inches maximum second end
Wrenching Surface Shape: 12 point both ends internal
Wrenching End Offset Angle: 40.0 degrees minimum and 65.0 degrees maximum
Special Markings: wrench size
Material: steel overall
Surface Treatment: chromium overall
Style Designator: deep angular offset double head
Specification/Standard Data: 05047-asme b107.100 professional/industrial association standard
Nondefinitive Spec/Std Data: 3 type and 1 class

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5120-00-085-3955	No Name Available	01/29/1968
5120-00-976-3175	No Name Available	07/11/1966

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
M-4657	Box Wrench
XV4652	Box Wrench

FAQs

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

What is the FSCG of the NSN 5120-00-277-1583?

The FSCG of the NSN 5120-00-277-1583 is 5120

Does the NSN 5120-00-277-1583 have a Schedule B code assigned?

Yes, the Schedule B code is 8204110030

Does NSN 5120-00-277-1583 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 5120-00-277-1583 contain precious materials?

Precious metal content is unknown

Does NSN 5120-00-277-1583 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 5120-00-277-1583 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963