Staco Systems, Inc. · Electronic Components
40MS09B
Switch Assembly
Part Number40MS09B
ManufacturerStaco Systems, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-117-0561 (NSN)
Federal Item NameSWITCH ASSEMBLY
Federal Supply Class5930 — Switches
Identifying Number40MS09B PART NO.
Inclosure MaterialPLASTIC POLYSULFONE
Inclosure TypeFULLY INCLOSED
Controlling AgencyELECTROSPACE SYSTEMS
Switch TypePUSH
Environmental ProtectionCORROSION RESISTANT
Individual Switch Quantity4
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 40MS09B available?
We can source 40MS09B 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 40MS09B by Staco Systems, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 40MS09B 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 40MS09B?
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 40MS09B?
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.