MIL-SPEC · Electronic Components
1635
Electron Tube
Part Number1635
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-188-3901 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Nondefinitive Spec Std Data1635 TYPE
Tube TypeTRIODE
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
ColorRED FIRST POSITION COVER SINGLE CONDUCTOR
Voltage Rating3000.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Strand Awg Size Per Conductor36 SINGLE CONDUCTOR
Strand Quantity Per Conductor41 SINGLE CONDUCTOR
Surface TreatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
Round Conductor Size20 AWG SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Cross Sectional Shape StyleROUND
Temp Rating-30.0 CELSIUS AND 90.0 CELSIUS
Cross Section Outside Diameter0.140 INCHES NOMINAL
Vendor Part Numbers1635RED
Cancelled NSN6145-01-094-5144 (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 1635 available?
We can source 1635 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 1635 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1635 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 1635?
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 1635?
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.