Otto Engineering Inc. · Electronic Components
P4-821121
Switch, Push
Part NumberP4-821121
ManufacturerOtto Engineering Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-407-4286 (NSN)
Federal Item NameSWITCH,PUSH
Federal Supply Class5930 — Switches
Body Diameter0.500 INCHES NOMINAL
Body StyleBUSHING MOUNTED
Terminal Type And Quantity3 TURRET
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Mounting MethodTHREADED BUSHING
Contact Load Current Rating At Max5.000 AMPERES RESISTIVE DC AND 3.000 AMPERES INDUCTIVE DC
Maximum Voltage Rating In Volts28.0 DC
Inclosure TypeFULLY INCLOSED
ColorRED SINGLE ACTUATOR
Bushing Length0.609 INCHES NOMINAL
Body Length0.438 INCHES NOMINAL
ESD/EMICode A — ESD/EMI sensitive item
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 P4-821121 available?
We can source P4-821121 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 P4-821121 by Otto Engineering Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If P4-821121 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 P4-821121?
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 P4-821121?
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.