Lockheed Martin · Electronic Components
740512-6
Fuse, Cartridge
Part Number740512-6
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-686-9219 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Surface TreatmentSILVER TERMINAL
MaterialCOPPER TERMINAL
Continuous Current Rating In Amps3.000
Overall Diameter0.309 INCHES MINIMUM AND 0.319 INCHES MAXIMUM
Maximum Voltage Rating In Volts250.0 AC AND 250.0 DC
Interruption Indicator MethodVISIBLE ELEMENT
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Body StyleTUBE TYPE
Circuit Over Current InterruptionNORMAL INSTANTANEOUS
Overall Length1.193 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
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 740512-6 available?
We can source 740512-6 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 740512-6 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 740512-6 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 740512-6?
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 740512-6?
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.