Raytheon · Electronic Components
42-1859
Fuse, Cartridge
Part Number42-1859
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-539-7846 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Body StyleTUBE TYPE
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Circuit Over Current Interruption3.0 500 PCT OF CURRENT RATING
Overall Length1.250 INCHES NOMINAL
Interruption Indicator MethodVISIBLE ELEMENT
Maximum Voltage Rating In Volts250.0 AC AND 250.0 DC
Overall Diameter0.250 INCHES NOMINAL
Surface TreatmentNICKEL TERMINAL
Continuous Current Rating In Amps1.500
Reference Number Differentiating CAS DIFFERENTIATED BY MATERIAL
Vendor Part NumbersMDX1-5A250V
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 42-1859 available?
We can source 42-1859 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 42-1859 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 42-1859 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 42-1859?
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 42-1859?
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.