Ellis & Watts International · Electronic Components
B-5-4
Switch, Pressure
Part NumberB-5-4
ManufacturerEllis & Watts International
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-258-5960 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Contact Action StimulusINCREASE
Nominal Thread Size0.250 INCHES SINGLE PRESSURE CONNECTION
Thread Quantity Per Inch32 ALL THREADED HOLE
Contact Adjustment TypeEXTERNAL ACTUATION POINT DIAL AND EXTERNAL DEACTUATION POINT DIAL
Distance Between Mounting Facility1.000 INCHES NOMINAL
Mounting MethodBASE AND THREADED HOLE(S)
Terminal TypeTAB W/SCREW
Contact Load Current Rating2.3 AMPERES RESISTIVE LOAD THIRD VOLTAGE
Features ProvidedCAPILLARY TUBE END SEAL CONNECTION
Style DesignatorRECTANGULAR
Contact AdjustabilityDEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE
Vendor Part Numbers107520, P70LB-1, L59DP203, 271AP12AC, 271AP12AC2321, 271AP12AC4DP2A
Cancelled NSN5930-00-712-8028 (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 B-5-4 available?
We can source B-5-4 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 B-5-4 by Ellis & Watts International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B-5-4 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 B-5-4?
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 B-5-4?
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.