MB21791

View detailed technical data, stock status, and sourcing information for: MB21791
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5977 Electrical Contact Brushes and Electrodes

National Stock Number

5977-00-470-7646

Item Name Code

00302

Assigment Date

02/04/1970 (56 years ago)

An instrument designed to measure and transmit information relative to the quantity of liquid contained in a tank, vessel, chamber, or the like. Excludes:switch, liquid level.

1 shunt position designator, rectangular slip ring body style, 0.989 inches minimum and 1.000 inches maximum thickness, 3.500 inches nominal radius, 0.730 inches minimum and 0.750 inches maximum width

Product Characteristics

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

Shunt Position Designator: 1
Body Style: rectangular slip ring
Radius: 3.500 inches nominal
Width: 0.730 inches minimum and 0.750 inches maximum
Thickness: 0.989 inches minimum and 1.000 inches maximum
Length: 1.625 inches nominal
Brush Shunt Length: 4.250 inches nominal single shunt
Terminal Slot Width: 0.281 inches nominal
Top Style: flat
Contact Face Style: concave
Shunt Insulation Provision And Quantity: 1 insulated
Material: copper graphite
Material Document And Classification: morganite inc,gr c-5b mfr ref single material response
Style Designator: one piece
Terminal Type And Quantity: 1 straight w/slot

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
01-21791A	Electrical Contact Brush
A4452-7	Electrical Contact Brush
MB21791	Electrical Contact Brush

FAQs

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

What is the FSCG of the NSN 5977-00-470-7646?

The FSCG of the NSN 5977-00-470-7646 is 5977

Does the NSN 5977-00-470-7646 have a Schedule B code assigned?

Yes, the Schedule B code is 8545200000

Does NSN 5977-00-470-7646 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 5977-00-470-7646 contain precious materials?

Precious metal content is unknown

Does NSN 5977-00-470-7646 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 5977-00-470-7646 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Feb 4, 1970