Meggitt (New Hampshire), Inc. · Electronic Components
B1975
Relay, Thermal
Part NumberB1975
ManufacturerMeggitt (New Hampshire), Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-259-4523 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays and Solenoids
Mounting Facility Type And Quantit1 OCTAL BASE PLUG-IN
Contact Maximum Voltage Rating In250.0 AC
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
Contact Maximum Current Rating In3.0 AC
Delay Time In Seconds63.0 FIXED OPERATE MINIMUM AND 87.0 FIXED OPERATE MAXIMUM
Overall Length3.250 INCHES NOMINAL
Heater Voltage Rating In Volts117.0
Environmental ProtectionHERMETIC
Terminal Type And Quantity4 PIN
Overall Diameter1.250 INCHES NOMINAL
Heater Power Rating In Watts4.0
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 B1975 available?
We can source B1975 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 B1975 by Meggitt (New Hampshire), Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B1975 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 B1975?
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 B1975?
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.