Helwig Carbon Products · Electronic Components
S21752
Brush, Electrical Contact
Part NumberS21752
ManufacturerHelwig Carbon Products
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-238-9183 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Terminal Slot Width0.156 INCHES NOMINAL
Length0.968 INCHES MINIMUM AND 1.032 INCHES MAXIMUM
Shunt Insulation Provision And Qua1 UNINSULATED
Brush Shunt Length2.500 INCHES MINIMUM AND 2.625 INCHES MAXIMUM SINGLE SHUNT
Style DesignatorONE PIECE
Width0.496 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
Terminal Type And Quantity1 STRAIGHT W/SLOT
Shunt Position Designator2
Material Document And ClassificatiSPEER CARBON CO,GR E23 MFR REF SINGLE MATERIAL RESPONSE
MaterialELECTROGRAPHITIC
Body StyleRECTANGULAR COMMUTATOR
Vendor Part Numbers11226-43
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 S21752 available?
We can source S21752 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 S21752 by Helwig Carbon Products obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If S21752 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 S21752?
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 S21752?
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.