MIL-SPEC · Electronic Components
F21A250V300AS
Fuse, Cartridge
Part NumberF21A250V300AS
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-984-3137 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Test Data Document81349-MIL-F-15160 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Surface TreatmentSILVER TERMINAL
Overall Diameter2.406 INCHES MAXIMUM
Overall Length8.531 INCHES MINIMUM AND 8.719 INCHES MAXIMUM
Precious MaterialSILVER
Circuit Over Current InterruptionNORMAL INSTANTANEOUS
MaterialCOPPER TERMINAL
Terminal Thickness0.247 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Precious Material And LocationTERMINAL SURFACES SILVER
Terminal Length1.875 INCHES MINIMUM
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 F21A250V300AS available?
We can source F21A250V300AS 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 F21A250V300AS by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If F21A250V300AS 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 F21A250V300AS?
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 F21A250V300AS?
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.