Northrop Grumman Corp. Electronic Systems Defensive System Div · Electronic Components
121231-052
Resistor Assembly
Part Number121231-052
ManufacturerNorthrop Grumman Corp. Electronic Systems Defensive System Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-236-8617 (NSN)
Federal Item NameRESISTOR ASSEMBLY
Federal Supply Class5905 — Resistors
Component RelationshipNOT MATCHED
Assembly Construction MethodMOUNTED ON SOCKET
Component Controlling AgencyNORTHROP CORP; NORTHROP CORP; NORTHROP CORP; NORTHROP CORP
Component Identifying NumberRCR07G102JS PART NO. AND RCR07G331JS PART NO. AND RWR81S51R1FM PART NO. AND RCR07G271JS PART NO.
Component NameFIXED COMPOSITION RESISTOR; FIXED COMPOSITION RESISTOR; FIXED WIRE WOUND RESISTOR; FIXED COMPOSITION RESISTOR
Mounting MethodSOLDER
Mounting ConfigurationSPACES EVEN FOR 7 RESISTORS BOTTOM TO TOP
Component Quantity7
Terminal TypeWIRE LEAD
Resistor Power Dissipation Rating0.125 AND 1.0
Electrical Resistance1.0 KILOHMS AND 330.0 OHMS AND 51.1 OHMS AND 270.0 OHMS
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 121231-052 available?
We can source 121231-052 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 121231-052 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 121231-052 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 121231-052?
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 121231-052?
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.