Honeywell · Integrated Circuits
JS-551
Basic / Snap Action / Limit Switches Enclosed SW N.O.DPST
Part NumberJS-551
ManufacturerHoneywell
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-262-0889 (NSN)
Federal Item NameSWITCH,PUSH
Terminals4 SCREW
Mounting MethodBRACKET(S)
Body StyleHOLE MOUNT
Nominal Thread Size0.138 INCHES
Maximum Voltage Rating In Volts28.0 DC
Thread Class2A AND 2B
Inclosure TypeFULLY INCLOSED
Actuator StyleROUND
Thread Series DesignatorUNF
Contact Load Current Rating At Max750.000 MILLIAMPERES INDUCTIVE DC
Federal Supply Class5930 — Switches
Test Data Document81349-MIL-S-8805 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Terminal Type And Quantity4 SCREW
Nonpile Up Contact Arrangement2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION SINGLE SWITCH UNIT
Actuator Height0.910 INCHES NOMINAL
Vendor Part Numbers92117428, M8805/55-001
Cancelled NSN1005-00-049-9278 (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 JS-551 available?
We can source JS-551 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 JS-551 by Honeywell obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If JS-551 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 JS-551?
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 JS-551?
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.