Prestolite Electric · Electronic Components
MGB12
Brush, Electrical Contact
Part NumberMGB12
ManufacturerPrestolite Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-420-0986 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Shunt Insulation Provision And Qua2 INSULATED
MaterialCARBON
Style DesignatorONE PIECE
Thickness0.250 INCHES NOMINAL
Length0.475 INCHES NOMINAL
Width0.625 INCHES NOMINAL
Contact Face StyleCONCAVE
Top StyleFLAT WITH LEFT AND RIGHT EDGE BEVELED
Body StyleRECTANGULAR COMMUTATOR
Shunt Position Designator10 AND 12
ESD/EMICode A — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is MGB12 available?
We can source MGB12 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is MGB12 by Prestolite Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MGB12 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like MGB12?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for MGB12?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.