● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
American Hofmann  · Electronic Components

KA-1

Switch, Push

Part NumberKA-1
ManufacturerAmerican Hofmann
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameSWITCH,PUSH
Federal Supply Class5930 — Switches
Nonpile Up Contact Arrangement1 TWO CIRCUIT, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Inclosure TypeUNINCLOSED
Contact Load Current Rating At Max1.100 AMPERES RESISTIVE DC AND 1.100 AMPERES INDUCTIVE DC AND 10.000 AMPERES RESISTIVE AC AND 6.000 AMPERES INDUCTIVE AC
Overall Height1.125 INCHES NOMINAL
Maximum Voltage Rating In Volts120.0 AC AND 120.0 DC
Overall Width1.625 INCHES NOMINAL
Terminal Type And Quantity4 TAB, SOLDER LUG
Vendor Part Numbers40076807, 1003303-01
Cancelled NSN5999-01-202-6043 (cancelled)
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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

Frequently asked

Is KA-1 available?
We can source KA-1 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 KA-1 by American Hofmann obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KA-1 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 KA-1?
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 KA-1?
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.