The Boeing Company · Electronic Components
ST4M220-4B
Contact Strip, Radio Frequency Gr
Part NumberST4M220-4B
ManufacturerThe Boeing Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5940-01-391-8645 (NSN)
Federal Item NameCONTACT STRIP,RADIO FREQUENCY GR
Federal Supply Class5940 — Lugs, Terminals, and Terminal Strips
Overall Length1.500 INCHES NOMINAL
Surface TreatmentTIN
MaterialCOPPER ALLOY
Surface Treatment Document And ClaMIL-T-10727, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
Unit TypeANGLE
Contact Finger Quantity2
Overall Thickness0.012 INCHES NOMINAL
Overall Width0.500 INCHES NOMINAL
Mounting MethodHOLE
Overall Depth0.250 INCHES NOMINAL
Vendor Part Numbers869-74
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 ST4M220-4B available?
We can source ST4M220-4B 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 ST4M220-4B by The Boeing Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If ST4M220-4B 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 ST4M220-4B?
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 ST4M220-4B?
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.