St Marys Carbon Co., Inc. · Electronic Components
R70
Brush, Electrical Contact
Part NumberR70
ManufacturerSt Marys Carbon Co., Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-976-4693 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Style DesignatorONE PIECE
Terminal Type And Quantity1 YOKE W/HOLE
Shunt Insulation Provision And Qua2 UNINSULATED
Material Document And ClassificatiDELCO-REMY SPEC M-1504 MFR REF SINGLE MATERIAL RESPONSE
MaterialMETAL GRAPHITE
Contact Face StyleFLAT
Top StyleFLAT
Brush Shunt Length1.350 INCHES NOMINAL ALL SHUNTS
Thickness0.370 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
Body StyleRECTANGULAR COMMUTATOR
Length0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
Vendor Part NumbersAR11076
Cancelled NSN5977-00-795-2453 (cancelled)
Packing Chamber Quantity1
Overall Length81.0 MILLIMETERS NOMINAL
Overall Outside Diameter85.0 MILLIMETERS NOMINAL
Body Outside Diameter70.0 MILLIMETERS NOMINAL
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 R70 available?
We can source R70 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 R70 by St Marys Carbon Co., Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R70 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 R70?
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 R70?
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.