Honeywell · Electronic Components
1EN51-6
LIMIT SWITCH, TOP PLUNGER, DPDT
Part Number1EN51-6
ManufacturerHoneywell
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-687-1915 (NSN)
Additional NSNs5930-01-031-9997
Federal Item NameSWITCH,SENSITIVE
Terminals6 WIRE LEAD
Nominal Thread Size0.625 INCHES
Maximum Voltage Rating In Volts28.0 DC
Thread Series DesignatorUNEF
Switch Actuating Force48.0 OUNCES MINIMUM AND 96.0 OUNCES MAXIMUM
Switch Release Force32.0 OUNCES MINIMUM
Actuator Movement0.040 PRETRAVEL INCHES MAXIMUM AND 0.250 OVERTRAVEL INCHES MINIMUM AND 0.020 DIFFERENTIAL INCHES NOMINAL
Contact Load Current Rating At Max4.000 AMPERES RESISTIVE DC
Nonpile Up Contact Arrangement2 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
Inclosure TypeFULLY INCLOSED
Federal Supply Class5930 — Switches
Terminal Type And Quantity6 WIRE LEAD
Hazardous Locations EnvironmentalWATERTIGHT
Switch Actuator Quantity1
Vendor Part NumbersY1188-6-3
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 1EN51-6 available?
We can source 1EN51-6 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 1EN51-6 by Honeywell obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1EN51-6 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 1EN51-6?
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 1EN51-6?
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.