MP161A

View detailed technical data, stock status, and sourcing information for: MP161A
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-721-0195

Item Name Code

00136

Assigment Date

01/01/1963 (63 years ago)

0.250 inches nominal bushing length, 0.750 inches maximum body width, 1.437 inches nominal center to center distance between terminals parallel to length, 2.187 inches maximum body length, single pole type body style

Product Characteristics

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

Body Style: single pole type
Bushing Length: 0.250 inches nominal
Body Length: 2.187 inches maximum
Body Width: 0.750 inches maximum
Center To Center Distance Between Terminals Parallel To Length: 1.437 inches nominal
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: 1.812 inches nominal
Fragility Factor: moderately rugged
Mounting Surface To Terminal End Distance: 2.234 inches nominal
Pole Quantity: 1
Mounting Facility Type And Quantity: 2 threaded hole
Storage Type: general purpose warehouse
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 70.0 amperes ac and 70.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts: 120.0 ac and 30.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 3500.0 ac and 6000.0 dc single location
Circuit Protection Type: overcurrent single location
Trip Release Method: thermal single location
Trip Release Characteristic: time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 138.0 single location
Reset Method: manual
Main Contact Tripping Mechanism Type: trip free
Manual Actuator Type And Quantity: 1 push button
Actuator Function: reset
Actuator Position Designation: at pole one
Internal Trip Release Configuration: series trip single location
Nominal Thread Size: 0.138 inches
Trip Delay Time In Seconds Per Rated Continuous Current: 25.000 minimum at 200 pct and 60.000 maximum at 200 pct single location
Inclosure Protection Type For Which Designed: explosion proof and fungus proof
Trip Release Ambient Temp Rating: 25.0 celsius nominal single location
Unpackaged Unit Weight: 0.240 pounds nominal
Frequency In Hertz: 60.0 single location
Material: plastic case
Thread Series Designator: unc
Terminal Type And Quantity: 2 screw

Replaces National Stock Numbers

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

NSN	Name	Date
5925-00-257-6830	No Name Available	06/17/1967
5925-00-655-1021	No Name Available	02/10/1967
5925-00-949-9585	No Name Available	04/27/1970

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
M392	Circuit Breaker
MP161A	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-00-721-0195?

The FSCG of the NSN 5925-00-721-0195 is 5925

Does the NSN 5925-00-721-0195 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-721-0195 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 5925-00-721-0195 contain precious materials?

Item does not contain precious metal.

Does NSN 5925-00-721-0195 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 5925-00-721-0195 was assigned to the Federal Catalog?

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