General Motors · Electronic Components
1861782
Ring, Electrical Contact
Part Number1861782
ManufacturerGeneral Motors
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-423-4977 (NSN)
Federal Item NameRING,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
MaterialCOPPER ALLOY
ShapeCYLINDRICAL
Mounting ConfigurationSIX 10-32 TAPPED MTG HOLES ON A 2-27/32 IN. AND 3-5/32 IN. DIA BOLT CIRCLE; THREE HOLES ON EACH CIRCLE 120 DEG APART WIT
Overall Length3.875 INCHES NOMINAL
Overall Depth2.500 INCHES NOMINAL
Overall Width3.688 INCHES NOMINAL
Vendor Part Numbers1888400
Cancelled NSN2920-00-695-0271 (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 1861782 available?
We can source 1861782 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 1861782 by General Motors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1861782 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 1861782?
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 1861782?
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.