A837B

View detailed technical data, stock status, and sourcing information for: A837B
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5945 Relays and Solenoids

National Stock Number

5945-00-539-2386

Item Name Code

32512

Assigment Date

01/01/1963 (63 years ago)

1.750 inches nominal single mounting facility center to center distance between mounting facilities parallel to width, 3.680 inches nominal overall height, 2b single mounting facility thread class, 3.406 inches nominal single mounting facility center to center distance between mounting facilities parallel to length, 4.620 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.

Thread Class: 2b single mounting facility
Overall Length: 4.620 inches nominal
Center To Center Distance Between Mounting Facilities Parallel To Length: 3.406 inches nominal single mounting facility
Center To Center Distance Between Mounting Facilities Parallel To Width: 1.750 inches nominal single mounting facility
Overall Height: 3.680 inches nominal
Overall Width: 2.250 inches nominal
Winding Quantity: 3
Coil Quantity: 3
Winding Dc Resistance Rating: 16.0 ohms nominal first winding
Winding Dc Resistance Rating: 175.0 ohms nominal third winding
Winding Dc Resistance Rating: 9.5 ohms nominal second winding
Duty Type: continuous
Mounting Facility Type And Quantity: unable to decode
Thread Quantity Per Inch: 32 single mounting facility
Nominal Thread Size: 0.138 inches single mounting facility
Mounting Facility Pattern: rectangular single mounting facility
Nonpile-Up Main Contact Arrangement: 2 pole, single throw, normally closed, momentary action
Nominal Operating Current Rating And Type: 1.82 amperes dc all windings
Nonpile-Up Auxiliary Contact Arrangement: 2 pole, single throw, normally closed, momentary action
Auxiliary Contact Maximum Voltage Rating In Volts: 28.0 dc
Operating Voltage Rating And Type At Specified Temp: 28.0 volts dc 25 deg celsius all windings
Main Contact Load Current Rating At Maximum Rated Voltage: 3.0 amperes dc resistive load
Main Contact Maximum Voltage Rating In Volts: 28.0 dc
Thread Series Designator: unc single mounting facility
Terminal Type And Quantity: 14 pin all functions

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
50127-1042	Electromagnetic Relay
A837B	Electromagnetic Relay

FAQs

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

What is the FSCG of the NSN 5945-00-539-2386?

The FSCG of the NSN 5945-00-539-2386 is 5945

Does the NSN 5945-00-539-2386 have a Schedule B code assigned?

Yes, the Schedule B code is 8536410020

Does NSN 5945-00-539-2386 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 5945-00-539-2386 contain precious materials?

Precious metal content is unknown

Does NSN 5945-00-539-2386 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 5945-00-539-2386 was assigned to the Federal Catalog?

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