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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-502899
Corona Ball — Fuses and Lightning Arresters
Part NumberSM-B-502899
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-158-9125 (NSN)
Federal Item NameCORONA BALL
Federal Supply Class5920 — Fuses and Lightning Arresters
MaterialCOPPER ALLOY 268
Precious Material And LocationSURFACE SILVER
Mounting MethodUNTHREADED HOLE(S)
Overall Diameter0.880 INCHES NOMINAL
Mounting Hole TypePLAIN
Surface TreatmentSILVER
Basic Shape StyleCYLINDRICAL
Mounting Hole Diameter0.257 INCHES NOMINAL
Overall Length0.100 INCHES NOMINAL
Precious MaterialSILVER
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-502899 available?
We can source SM-B-502899 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-502899 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-502899 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-502899?
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-502899?
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.