E1857M1

View detailed technical data, stock status, and sourcing information for: E1857M1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5977 Electrical Contact Brushes and Electrodes

National Stock Number

5977-00-556-2726

Item Name Code

02937

Assigment Date

01/01/1963 (63 years ago)

A holder designed to accommodate and position a brush against a commutator or collector ring. Also includes items consisting of two or more brush holders (boxes) cast as an inseparable unit. May include facilities for applying pressure to the brush(es) and may also be furnished with the brush(es). See also holder assembly, electrical contact brush.

0.550 inches nominal overall diameter, 0.251 inches nominal inside width, 0.560 inches nominal inside length, 0.560 inches nominal overall length, 1 mounting facility quantity

Product Characteristics

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

Overall Length: 0.560 inches nominal
Overall Diameter: 0.550 inches nominal
Inside Width: 0.251 inches nominal
Inside Length: 0.560 inches nominal
Mounting Facility Quantity: 1
Brush Quantity Accommodated Per Holder: 1
Inside Thickness: 0.251 inches nominal
Mounting Facility: press fit
Material: copper alloy box

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
E1857M1	Electrical Contact Brush Holder

FAQs

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

What is the FSCG of the NSN 5977-00-556-2726?

The FSCG of the NSN 5977-00-556-2726 is 5977

Does the NSN 5977-00-556-2726 have a Schedule B code assigned?

Yes, the Schedule B code is 8545900000

Does NSN 5977-00-556-2726 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 5977-00-556-2726 contain precious materials?

Precious metal content is unknown

Does NSN 5977-00-556-2726 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 5977-00-556-2726 was assigned to the Federal Catalog?

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