DLA Weapons Support (Columbus) · Electronic Components
L04389
Fuse, Cartridge
Part NumberL04389
ManufacturerDLA Weapons Support (Columbus)
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-338-3489 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Body StyleHOLE TYPE
Surface TreatmentSILVER TERMINAL
Circuit Over Current InterruptionNORMAL INSTANTANEOUS
Maximum Voltage Rating In Volts500.0 AC
Fragility FactorMODERATELY RUGGED
Interruption Indicator MethodOPAQUE BODY
Criticality Code JustificationFEAT
Terminal Thickness0.250 INCHES NOMINAL
Continuous Current Rating In Amps550.000
Mounting Slot Width0.433 INCHES NOMINAL
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Cancelled NSN5920-01-316-1709 (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 L04389 available?
We can source L04389 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 L04389 by DLA Weapons Support (Columbus) obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If L04389 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 L04389?
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 L04389?
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.