Hiller Aircraft Corporation · Electronic Components
FES191B
Switch, Pressure
Part NumberFES191B
ManufacturerHiller Aircraft Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-503-2860 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Mounting Facility PatternTWO POSITION IN-LINE
Pressure Switch TypeGAGE
Terminal TypeCONNECTOR, RECEPTACLE
Style DesignatorCYLINDRICAL W/MOUNTING LUGS
Nominal Thread Size0.438 INCHES SINGLE PRESSURE CONNECTION
Thread Quantity Per Inch20 SINGLE PRESSURE CONNECTION
Media For Which DesignedLIQUID
Contact Stimulus Rating18.50 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 17.50 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 1.00
Overall Length3.750 INCHES MAXIMUM
Body Diameter3.000 INCHES NOMINAL
Overall Width3.625 INCHES NOMINAL
Vendor Part Numbers1344
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 FES191B available?
We can source FES191B 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 FES191B by Hiller Aircraft Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If FES191B 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 FES191B?
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 FES191B?
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.