Helwig Carbon Products · Electronic Components
80-437521
Brush, Electrical Contact
Part Number80-437521
ManufacturerHelwig Carbon Products
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-300-1539 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Material Document And ClassificatiHELWIG CARBON PRODUCTS INC,GRADE 345 MFR REF SINGLE MATERIAL RESPONSE
Thickness0.438 INCHES NOMINAL
Terminal Type And Quantity1 STRAIGHT W/HOLE
Contact Face StyleFLAT
Width0.750 INCHES NOMINAL
Style DesignatorONE PIECE
Length1.250 INCHES NOMINAL
MaterialELECTROGRAPHITIC
Body StyleRECTANGULAR COMMUTATOR
Vendor Part Numbers29-130E45
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 80-437521 available?
We can source 80-437521 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 80-437521 by Helwig Carbon Products obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 80-437521 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 80-437521?
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 80-437521?
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.