MIL-SPEC · Electronic Components
1851
Electron Tube
Part Number1851
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-188-3921 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Nondefinitive Spec Std Data1851 TYPE
Color Coding Document1851-05808 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER D
Cross Sectional Shape StyleROUND
Conductor Arrangement And Quantity4 SINGLES
Strand Awg Size Per Conductor30 ALL CONDUCTORS
Terminal Manufacturer Identifying1490 SECOND END ALL CONDUCTORS
Terminal Commercial And Government83330 BOTH ENDS ALL CONDUCTORS
Conductor FormSTRANDED ALL CONDUCTORS
Round Conductor Size22 AWG ALL CONDUCTORS
Material Document And ClassificatiQQ-C-591,ALLOY 647 FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
Conductor Grouping Arrangement Typ1 SINGLES ALL GROUPS
Style DesignatorRECEPTACLE AND LUG
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 1851 available?
We can source 1851 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 1851 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1851 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 1851?
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 1851?
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.