CTM3977

View detailed technical data, stock status, and sourcing information for: CTM3977
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Federal Supply Group

Hand Tools

Federal Supply Classification

5120 Nonpowered Nonedged Hand Tools

National Stock Number

5120-00-248-6640

Item Name Code

17105

Assigment Date

01/01/1963 (63 years ago)

A component with an open-wall opening having one end designed to fit into a head, crowfoot socket wrench and the other end having an internal opening such as hexagonal or 8-point. See also crowfoot attachment, socket wrench.

0.875 inches nominal single end wrenching surface size, 1.298 inches nominal overall length, 0.926 inches nominal drive end outside diameter, 1.250 inches nominal wrenching end outside diameter, 0.682 inches minimum opening 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: 1.298 inches nominal
Opening Diameter: 0.682 inches minimum
Wrenching End Outside Diameter: 1.250 inches nominal
Drive End Outside Diameter: 0.926 inches nominal
Wrenching Surface Size: 0.875 inches nominal single end
Wrenching Surface Shape: hexagon single end internal
Material: steel overall
Surface Treatment: chromium and nickel and oxide overall
Style Designator: external-internal

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
8708927	Crowfoot Wrench Head Socket
CTM3977	Crowfoot Wrench Head Socket
GGG-W-646 TY2CL1STAFMAPT70	Crowfoot Wrench Head Socket

FAQs

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

What is the FSCG of the NSN 5120-00-248-6640?

The FSCG of the NSN 5120-00-248-6640 is 5120

Does the NSN 5120-00-248-6640 have a Schedule B code assigned?

Yes, the Schedule B code is 8204200000

Does NSN 5120-00-248-6640 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 5120-00-248-6640 contain precious materials?

Item does not contain precious metal.

Does NSN 5120-00-248-6640 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 5120-00-248-6640 was assigned to the Federal Catalog?

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