B243A

View detailed technical data, stock status, and sourcing information for: B243A
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5945 Relays and Solenoids

National Stock Number

5945-00-938-5388

Item Name Code

32512

Assigment Date

03/15/1967 (59 years ago)

6.520 inches maximum overall length, 3.687 inches nominal single mounting facility center to center distance between mounting facilities parallel to width, 5.380 inches maximum overall height, 6.190 inches maximum overall width, 5.437 inches nominal single mounting facility center to center distance between mounting facilities parallel to length

Product Characteristics

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

Overall Length: 6.520 inches maximum
Center To Center Distance Between Mounting Facilities Parallel To Length: 5.437 inches nominal single mounting facility
Center To Center Distance Between Mounting Facilities Parallel To Width: 3.687 inches nominal single mounting facility
Overall Height: 5.380 inches maximum
Overall Width: 6.190 inches maximum
Environmental Protection: explosion proof
Unthreaded Mounting Hole Diameter: 0.218 inches nominal single mounting facility
Winding Quantity: 1
Coil Quantity: 1
Duty Type: continuous
Mounting Facility Type And Quantity: unable to decode
Features Provided: polarized
Mounting Facility Pattern: rectangular single mounting facility
Nonpile-Up Main Contact Arrangement: 3 pole, single throw, normally open, momentary action
Nominal Operating Current Rating And Type: 8.0 amperes dc single winding
Nonpile-Up Auxiliary Contact Arrangement: 4 pole, single throw, normally open, momentary action and 2 pole, single throw, normally closed, momentary action and 1 pole, double throw, one position momentary
Auxiliary Contact Maximum Voltage Rating In Volts: 120.0 ac and 28.0 dc
Operating Voltage Rating And Type At Specified Temp: 24.0 volts dc 25 deg celsius single winding
Main Contact Load Current Rating At Maximum Rated Voltage: 350.0 amperes ac resistive load
Main Contact Maximum Voltage Rating In Volts: 416.0 ac
Terminal Type And Quantity: 23 pin all functions

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4730-00-089-4390	No Name Available	09/01/1967
5945-00-167-9187	No Name Available	03/28/1973

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
B243A	Electromagnetic Relay
B243AM	Electromagnetic Relay

FAQs

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

What is the FSCG of the NSN 5945-00-938-5388?

The FSCG of the NSN 5945-00-938-5388 is 5945

Does the NSN 5945-00-938-5388 have a Schedule B code assigned?

Yes, the Schedule B code is 8536490075

Does NSN 5945-00-938-5388 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 5945-00-938-5388 contain precious materials?

Precious metal content is unknown

Does NSN 5945-00-938-5388 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 5945-00-938-5388 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Mar 15, 1967