Cole Instrument · Electronic Components
250-2128-1
Switch, Rotary
Part Number250-2128-1
ManufacturerCole Instrument
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-431-7666 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Switch Actuator Indexing Position8 SINGLE ACTUATOR
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Knob Manufacturer Part Number37038
Terminal TypeCONNECTOR, RECEPTACLE
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL
Overall Length6.610 INCHES NOMINAL
Thread Length0.310 INCHES NOMINAL SINGLE MOUNTING FACILITY
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Knob Manufacturer Code97151
Individual Section Quantity1
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Vendor Part Numbers8151702
Cancelled NSN5930-00-911-1092 (cancelled)
ESD/EMICode A — ESD/EMI sensitive item
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 250-2128-1 available?
We can source 250-2128-1 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 250-2128-1 by Cole Instrument obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 250-2128-1 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 250-2128-1?
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 250-2128-1?
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.