Northrop Grumman Systems Corp. · Electronic Components
D311-421
Capacitor-Resistor
Part NumberD311-421
ManufacturerNorthrop Grumman Systems Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5915-00-501-3472 (NSN)
Federal Item NameCAPACITOR-RESISTOR
Federal Supply Class5915 — Filters and Networks
Terminal Quantity1
Mounting MethodBRACKET(S)
Overall Length3.375 INCHES NOMINAL
Overall Width1.000 INCHES NOMINAL
Assembly FormENCASED
Overall Height3.750 INCHES NOMINAL
Schematic Diagram Designator2 CAPACITORS, 5 RESISTORS
Dc Voltage Rating Per Function In600.0 ALL CAPACITORS
Capacitance Value Per Function500000.0 PICOFARADS ALL CAPACITORS
MaterialSTEEL CASE
Resistor Power Dissipation Rating0.500 RESISTOR R1 AND 0.500 RESISTOR R2 AND 5.000 RESISTOR R3 AND 0.500 RESISTOR R4 AND 2.000 RESISTOR R5
Vendor Part Numbers1024D0877
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 D311-421 available?
We can source D311-421 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 D311-421 by Northrop Grumman Systems Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D311-421 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 D311-421?
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 D311-421?
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.