MIL-SPEC · Electronic Components
3SP1
Electron Tube
Part Number3SP1
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-261-8639 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Tube TypeCATHODE RAY
Cancelled NSN5960-00-060-1372 (cancelled)
Power Line Frequency Rating Per Fu60.0 1ST RADIO INTERFERENCE FIRST FUNCTION
Principal Circuitry Type Per FunctINDUCTANCE-CAPACITANCE 1ST RADIO INTERFERENCE FIRST FUNCTION
Source Impedance Rating Per Functi50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Operating Current Rating Per Funct3.0 1ST RADIO INTERFERENCE FIRST FUNCTION
Body Height1.750 INCHES NOMINAL
Functional Terminal Type And Quant2 TAB, SOLDER LUG GROUND THIRD FUNCTION
Load Impedance Per Function50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Operating Voltage Rating And Type250.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION
Body Width2.000 INCHES NOMINAL
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
Maximum Dielectric Withstanding Dc2.25 KILOVOLTS AT SEA LEVEL
Vendor Part Numbers3SP1A, 447-0345-006
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 3SP1 available?
We can source 3SP1 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 3SP1 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3SP1 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 3SP1?
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 3SP1?
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.