Huntington Ingalls Inc. · Electronic Components
9121420
Fuse Box — Fuses and Lightning Arresters
Part Number9121420
ManufacturerHuntington Ingalls Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-103-0577 (NSN)
Federal Item NameFUSE BOX
Federal Supply Class5920 — Fuses and Lightning Arresters
Overall Height10.000 INCHES NOMINAL10.000 INCHES NOMINAL
Fuse Type And Quantity Accommodate3 CARTRIDGE FERRULE3 CARTRIDGE FERRULE
Mounting MethodTHREADED STUD(S)THREADED STUD(S)
MaterialSTEELSTEEL
Standard Mounting Pattern Designat4 POINT-RECTANGULAR4 POINT-RECTANGULAR
Main Line Maximum Dc Voltage Ratin600.0600.0
Overall Depth4.250 INCHES NOMINAL4.250 INCHES NOMINAL
Features ProvidedCOVERCOVER
Center To Center Distance Between8.000 INCHES NOMINAL8.000 INCHES NOMINAL
Entrance Type And Quantity2 PREPUNCHED HOLE2 PREPUNCHED HOLE
Style DesignatorSQUARE, FLUSH MOUNTINGSQUARE, FLUSH MOUNTING
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 9121420 available?
We can source 9121420 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 9121420 by Huntington Ingalls Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 9121420 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 9121420?
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 9121420?
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.