Northrop Grumman Corp. Electronic Systems Defensive System Div · Electronic Components
121231-045
Resistor Assembly
Part Number121231-045
ManufacturerNorthrop Grumman Corp. Electronic Systems Defensive System Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-257-4735 (NSN)
Federal Item NameRESISTOR ASSEMBLY
Federal Supply Class5905 — Resistors
Component RelationshipNOT MATCHED
Assembly Construction MethodMOUNTED ON SOCKET
Mounting MethodSOLDER
Component Identifying NumberRCR07G272JS PART NO. AND RNC55H1001FR PART NO. AND RCR07G682JS PART NO. AND RCR07G152JS PART NO. AND RCR32G470JS PART NO
Component NameFIXED FILM RESISTOR 2; FIXED COMPOSITION RESISTOR 1,3,4,5,6
Criticality Code JustificationFEAT
Resistor Power Dissipation Rating0.25 AND 0.125 AND 1.0
Component Controlling AgencyNORTHROP CORP
Terminal TypeWIRE LEAD
Component Quantity6
Resistance Tolerance In Percent-5.0 TO 5.0 AND -1.0 TO 1.0
ESD/EMICode B — ESD/EMI sensitive item
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 121231-045 available?
We can source 121231-045 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 121231-045 by Northrop Grumman Corp. Electronic Systems Defensive System Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121231-045 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 121231-045?
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 121231-045?
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.