Northrop Grumman Corp. Electronic Systems Defensive System Div · Electronic Components
121231-051
Resistor Assembly
Part Number121231-051
ManufacturerNorthrop Grumman Corp. Electronic Systems Defensive System Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-236-7927 (NSN)
Federal Item NameRESISTOR ASSEMBLY
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-5.0 TO 5.0 AND -1.0 TO 1.0
Component Quantity6
Component RelationshipNOT MATCHED
Component Identifying NumberRCR07G472JS PART NO. AND RCR07G473JS PART NO. AND RNC60H2210FR PART NO. AND RWR84S9R53FM PART NO. AND RWR84S1870FM PART
Mounting ConfigurationSPACES EVEN FOR 18 RESISTORS BOTTOM TO TOP,SPACE 1/3/4/5 USED,2 RESISTORS VERTICAL SIDE BY SIDE CONNECTED TO SPACE 7/18
Mounting MethodSOLDER
Component NameFIXED COMPOSITION RESISTOR; FIXED COMPOSITION RESISTOR; FIXED FILM RESISTOR; FIXED WIRE WOUND RESISTOR; FIXED WIRE WOUND
Resistor Power Dissipation Rating0.125 AND 0.25 AND 7.0
Assembly Construction MethodMOUNTED ON SOCKET
Component Controlling AgencyNORTHROP CORP; NORTHROP CORP; NORTHROP CORP; NORTHROP CORP; NORTHROP CORP; NORTHROP CORP
Terminal TypeWIRE LEAD
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 121231-051 available?
We can source 121231-051 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 121231-051 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 121231-051 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 121231-051?
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 121231-051?
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.