General Motors · Electronic Components
1881838
Brush, Electrical Contact
Part Number1881838
ManufacturerGeneral Motors
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-391-0632 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Width0.750 INCHES NOMINAL
Body StyleRECTANGULAR COMMUTATOR
Basic Shape StyleUNTHREADED SINGLE THROUGH HOLE
Hole Diameter0.151 INCHES NOMINAL
Contact Face StyleCONCAVE
Thickness0.250 INCHES NOMINAL
Material Document And ClassificatiGRADE -1504 FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE
Radius0.750 INCHES NOMINAL
Distance From Brush Top To Hole Ce0.160 INCHES NOMINAL
MaterialMETAL GRAPHITE
Length0.500 INCHES NOMINAL
Cancelled NSN5977-00-285-0046 (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 1881838 available?
We can source 1881838 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 1881838 by General Motors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1881838 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 1881838?
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 1881838?
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.