Westinghouse Electric Corp. · Electronic Components
3B7721
Motor, Direct Current
Part Number3B7721
ManufacturerWestinghouse Electric Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN6105-00-504-0034 (NSN)
Federal Item NameMOTOR,DIRECT CURRENT
Federal Supply Class6105 — Motors, Electrical
Length Of Shaft From Housing6.250 INCHES SINGLE END
Cooling MethodAMBIENT AIR
Inclosure SpecificationMIL-STD-108
Keyway Width0.7500 INCHES NOMINAL IDENTICAL ENDS
Overall Height31.188 INCHES
Overall Width24.250 INCHES
Overall Length54.500 INCHES
Mounting MethodFIXED BASE
Winding TypeCOMPOUND WOUND
Current Rating MethodLOAD
Nominal Center To Center Distance27.750 INCHES
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 3B7721 available?
We can source 3B7721 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 3B7721 by Westinghouse Electric Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3B7721 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 3B7721?
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 3B7721?
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.