2CMS

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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5965 Microphones and Speakers Handsets Headsets

National Stock Number

5965-00-539-7778

Item Name Code

15771

Assigment Date

01/01/1963 (63 years ago)

2.063 inches nominal center to center distance between mounting facilities parallel to length, 2 terminal quantity, 1.875 inches nominal overall depth, tab, solder lug terminal type, 2.531 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.

Terminal Quantity: 2
Terminal Type: tab, solder lug
Overall Depth: 1.875 inches nominal
Overall Length: 2.531 inches nominal
Center To Center Distance Between Mounting Facilities Parallel To Length: 2.063 inches nominal
Center To Center Distance Between Mounting Facilities Parallel To Width: 2.063 inches nominal
Overall Width: 2.531 inches nominal
Mounting Hole Diameter: 0.156 inches nominal
Power Rating: 0.50 watts normal and 0.60 watts peak
Transducer Diameter: 1.875 inches nominal
Mounting Facility Quantity: 4
Transducer Type: cone
Usage Design: indoor
Installation Design: nonportable
Impedance Rating In Ohms: 3.2 voice coil nominal
Mounting Method: unthreaded hole
Special Features: all metal parts cadmium
Style Designator: square

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5965-00-377-0084	No Name Available	09/06/1968
5965-00-977-6019	No Name Available	11/01/1976
5965-01-071-1766	No Name Available	07/01/1981

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
2CM6	Permanent Magnet Loudspeaker
2CMS	Permanent Magnet Loudspeaker
350B9508-1	Permanent Magnet Loudspeaker
SP25Y	Permanent Magnet Loudspeaker

FAQs

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

What is the FSCG of the NSN 5965-00-539-7778?

The FSCG of the NSN 5965-00-539-7778 is 5965

Does the NSN 5965-00-539-7778 have a Schedule B code assigned?

Yes, the Schedule B code is 8518210000

Does NSN 5965-00-539-7778 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 5965-00-539-7778 contain precious materials?

Precious metal content is unknown

Does NSN 5965-00-539-7778 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5965-00-539-7778 was assigned to the Federal Catalog?

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