Linemaster Switch · Electronic Components
121S
Switch, Foot
Part Number121S
ManufacturerLinemaster Switch
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-949-5387 (NSN)
Federal Item NameSWITCH,FOOT
Federal Supply Class5930 — Switches
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, TWO POSITIONS MOMENTARY SINGLE SWITCH UNIT
Contact Load Current Rating At Max15.000 AMPERES RESISTIVE AC
Terminal Type And Quantity4 WIRE LEAD
Body StyleRECTANGULAR PEDAL
Body Length5.500 INCHES NOMINAL
Maximum Voltage Rating In Volts250.0 AC
Body Width3.250 INCHES NOMINAL
Body Height1.250 INCHES NOMINAL
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 121S available?
We can source 121S 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 121S by Linemaster Switch obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121S 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 121S?
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 121S?
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.