Prestolite Electric · Electronic Components
7904
Brush, Electrical Contact
Part Number7904
ManufacturerPrestolite Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-296-2624 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Contact Face StyleCONCAVE
Brush Shunt Length1.625 INCHES NOMINAL SINGLE SHUNT
Terminal Type And Quantity1 STRAIGHT W/HOLE
MaterialCARBON
Style DesignatorONE PIECE
Material Document And ClassificatiSUPERIOR CO GRADE 440 MFR REF 1ST MATERIAL RESPONSE OR MORGANITE GRADE B3A MFR REF 2ND MATERIAL RESPONSE
Shunt Insulation Provision And Qua1 INSULATED
Top StyleFLAT
Radius1.375 INCHES NOMINAL
Shunt Position Designator2
Thickness0.187 INCHES NOMINAL
Cancelled NSN5977-00-364-5205 (cancelled)
Current TypeAC
Reference Data And LiteratureTO 33A1-13-491-1
PhaseSINGLE
Mounting MethodTABLE
Screen Size8X10CM
Frequency Rating48.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM
Overall Width12.000 INCHES NOMINAL
Voltage Rating115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL
Overall Length23.800 INCHES NOMINAL
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 7904 available?
We can source 7904 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 7904 by Prestolite Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 7904 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 7904?
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 7904?
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.