Mason Electric Co. · Electronic Components
505003
Switch, Lever
Part Number505003
ManufacturerMason Electric Co.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-578-4265 (NSN)
Federal Item NameSWITCH,LEVER
Federal Supply Class5930 — Switches
Body StyleHOLE MOUNTED
Thread Quantity Per Inch32
Actuator StyleROUND
Pile Up Contact Form Arrangement1A FIRST POSITION
Mounting MethodTHREADED HOLE(S)
Center To Center Distance Between1.580 INCHES MINIMUM AND 1.600 INCHES MAXIMUM
Body Height1.500 INCHES MINIMUM AND 1.562 INCHES MAXIMUM
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Actuator Position Action RelationsUP POSITION MOMENTARY AND DOWN POSITION MOMENTARY
Contact Load Current Rating At Max20.000 AMPERES RESISTIVE DC AND 10.000 AMPERES RESISTIVE AC
Inclosure TypeFULLY INCLOSED
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 505003 available?
We can source 505003 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 505003 by Mason Electric Co. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 505003 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 505003?
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 505003?
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.