MIL-SPEC · Electronic Components
8251
Electron Tube
Part Number8251
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-926-2637 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Nondefinitive Spec Std Data8251 TYPE
Power Rating1.000 KILOWATTS AVERAGE
Termination TypeCONNECTION COAXIAL
Impedance Rating In Ohms50.0 NOMINAL
Overall Length17.812 INCHES NOMINAL
Body Length15.000 INCHES NOMINAL
Overall Height8.500 INCHES NOMINAL
Ambient Temp At Full Rated Power-40.0 CELSIUS AND 45.0 CELSIUS
Overall Width5.938 INCHES NOMINAL
Connector End DesignMALE
Frequency Range Rating+0.000 TO 2.500 GIGAHERTZ
Cooling MethodSELF-COOLED
Cancelled NSN6625-00-647-0586 (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 8251 available?
We can source 8251 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 8251 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 8251 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 8251?
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 8251?
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.