Ranco Inc. Ranco Controls Div · Electronic Components
B4815
Relay Assembly
Part NumberB4815
ManufacturerRanco Inc. Ranco Controls Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-201-5261 (NSN)
Federal Item NameRELAY ASSEMBLY
Federal Supply Class5945 — Relays and Solenoids
Individual Relay Quantity2
Identifying Number4899-1 PART NO. AND 4899-2 PART NO.
Overall Width2.344 INCHES NOMINAL
Overall Height2.250 INCHES NOMINAL
Mounting ConfigurationFOUR 0.196 IN. DIA MTG HOLES ON 1/2 IN. BY 5-3/4 IN. MTG CENTERS
Controlling AgencyWILXOLATOR CO
Overall Length6.500 INCHES NOMINAL
Mounting FacilityCONTAINER
Relay TypeARMATURE
Cancelled NSN5960-00-321-1261 (cancelled)
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 B4815 available?
We can source B4815 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 B4815 by Ranco Inc. Ranco Controls Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B4815 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 B4815?
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 B4815?
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.