Naval Ship Systems Command · Electronic Components
21231B
Motor, Alternating Current
Part Number21231B
ManufacturerNaval Ship Systems Command
AvailabilityAvailable to order — request a quote
Specifications
NSN6105-00-548-2470 (NSN)
Federal Item NameMOTOR,ALTERNATING CURRENT
Federal Supply Class6105 — Motors, Electrical
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
Shaft Center To Mounting Surface D6.250 INCHES SINGLE END
Shaft End CharacteristicA9 SINGLE STYLE SINGLE END
Keyway Length1.3750 INCHES NOMINAL SINGLE END
Length Of Shaft From Housing1.125 INCHES SINGLE END
Duty CycleCONTINUOUS
Power Rating3.5000 HORSEPOWER OUTPUT
Temp Rating50.0 OPERATING CELSIUS AND 40.0 AMBIENT CELSIUS
Shaft Rotation DirectionCLOCKWISE OR COUNTERCLOCKWISE SINGLE END
Rotor Speed Rating In Rpm1780.0 SINGLE FULL LOAD
Overall Length17.000 INCHES
Vendor Part NumbersN30143
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 21231B available?
We can source 21231B 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 21231B by Naval Ship Systems Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21231B 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 21231B?
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 21231B?
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.