8531PC81

View detailed technical data, stock status, and sourcing information for: 8531PC81
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5977 Electrical Contact Brushes and Electrodes

National Stock Number

5977-00-284-7560

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.

1.500 inches nominal overall width, 1.390 inches nominal inside width, 1.750 inches nominal overall length, 1 terminal quantity, 1.250 inches nominal inside 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: 1
Overall Length: 1.750 inches nominal
Overall Width: 1.500 inches nominal
Inside Width: 1.390 inches nominal
Inside Length: 1.250 inches nominal
Overall Thickness: 1.250 inches nominal
Mounting Facility Quantity: 2
Brush Pressure Spring Type Accommodated: helical torsion
Brush Spring Adjustability: adjustable
Brush Quantity Accommodated Per Holder: 1
Inside Thickness: 0.377 inches nominal
Mounting Facility: clamp and rod
Terminal Type: screw
Material: copper alloy box

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5977-00-366-8481	No Name Available	01/01/1963

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
71857S	Electrical Contact Brush Holder
80283PC8	Electrical Contact Brush Holder
80418PC10	Electrical Contact Brush Holder
8531PC81	Electrical Contact Brush Holder
8630ITEM4M	Electrical Contact Brush Holder
8630PC27	Electrical Contact Brush Holder
8779PC11	Electrical Contact Brush Holder
8925PC11	Electrical Contact Brush Holder

FAQs

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

What is the FSCG of the NSN 5977-00-284-7560?

The FSCG of the NSN 5977-00-284-7560 is 5977

Does the NSN 5977-00-284-7560 have a Schedule B code assigned?

Yes, the Schedule B code is 8545900000

Does NSN 5977-00-284-7560 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 5977-00-284-7560 contain precious materials?

Precious metal content is unknown

Does NSN 5977-00-284-7560 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 5977-00-284-7560 was assigned to the Federal Catalog?

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