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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-643872
Coil, Radio Frequency
Part NumberSM-B-643872
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-401-4527 (NSN)
Federal Item NameCOIL,RADIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Terminal Type And Quantity2 WIRE LEAD
Winding Operating Current600.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Mounting MethodTERMINAL SINGLE GROUP
Body Length0.375 INCHES NOMINAL
Winding Conductor Size0.02535 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING
Dc Resistance Rating In Ohms0.900 SINGLE COMPONENT SINGLE WINDING
Maximum Operating Temp50.0 CELSIUS
Reliability IndicatorNOT ESTABLISHED
Inductance Rating56.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Quality Factor85 MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Outside Diameter0.312 INCHES NOMINAL
Vendor Part Numbers300108-60
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 SM-B-643872 available?
We can source SM-B-643872 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 SM-B-643872 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-B-643872 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 SM-B-643872?
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 SM-B-643872?
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.