Electric Machinery Dresser Industries Inc. · Electronic Components
71857R
Holder, Electrical Contact Brush
Part Number71857R
ManufacturerElectric Machinery Dresser Industries Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-038-0946 (NSN)
Federal Item NameHOLDER,ELECTRICAL CONTACT BRUSH
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Mounting Facility Quantity1
Terminal TypeSCREW
Overall Width1.125 INCHES NOMINAL
Overall Length1.250 INCHES NOMINAL
Inside Length1.250 INCHES NOMINAL
Mounting FacilityCLAMP
Overall Thickness4.250 INCHES NOMINAL
Brush Quantity Accommodated Per Ho1
Brush Spring AdjustabilityADJUSTABLE
Inside Width1.015 INCHES NOMINAL
Brush Pressure Spring Type AccommoHELICAL TORSION
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 71857R available?
We can source 71857R 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 71857R by Electric Machinery Dresser Industries Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 71857R 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 71857R?
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 71857R?
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.