St Marys Carbon Co., Inc. · Electronic Components
R59
Brush, Electrical Contact
Part NumberR59
ManufacturerSt Marys Carbon Co., Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-391-0640 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Body StyleRECTANGULAR COMMUTATOR
Contact Face StyleCONCAVE ON BEVEL
Brush Shunt Length2.000 INCHES NOMINAL SINGLE SHUNT
Terminal Type And Quantity1 FLAG W/HOLE
MaterialGRAPHITE
Style DesignatorONE PIECE
Angle20.0 DEGREES NOMINAL
Shunt Insulation Provision And Qua1 UNINSULATED
Material Document And ClassificatiDELCO-REMY DIV,GMC,GR -1505 MFR REF SINGLE MATERIAL RESPONSE
Terminal Hole Diameter0.168 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
Width0.880 INCHES NOMINAL
Cancelled NSN5977-00-284-9918 (cancelled)
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 R59 available?
We can source R59 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 R59 by St Marys Carbon Co., Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R59 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 R59?
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 R59?
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.