Staco Systems, Inc. · Electronic Components
R491S08B
Switch Assembly
Part NumberR491S08B
ManufacturerStaco Systems, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-648-3318 (NSN)
Federal Item NameSWITCH ASSEMBLY
Federal Supply Class5930 — Switches
Overall Width0.870 INCHES NOMINAL
Overall Length3.24 INCHES NOMINAL
Environmental ProtectionMOISTURE PROOF
Identifying NumberR491S08B PART NO.
Individual Switch Quantity1
Mounting ConfigurationCLAMP SLEEVE MOUNTED
Controlling AgencySTACO
Inclosure TypeFULLY INCLOSED
Mounting MethodCLAMP RING(S)
Switch TypePUSH
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 R491S08B available?
We can source R491S08B 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 R491S08B by Staco Systems, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R491S08B 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 R491S08B?
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 R491S08B?
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.