Altech · Electronic Components
MS20
Starter; 20 A; 480 VAC; Solid State; 3.37 in.; 3.15 in.; 1.8 nm; 15 HP @ 480 V
Part NumberMS20
ManufacturerAltech
AvailabilityAvailable to order — request a quote
Specifications
NSN5120-00-224-4660 (NSN)
Additional NSNs5340-01-728-9594
Federal Item NameKEY,SOCKET HEAD SCREW
MaterialSTEEL OVERALL
Overall Length2.682 INCHES NOMINAL
Wrenching Surface Size0.183 INCHES NOMINAL BOTH ENDS
Wrenching Surface Flute Quantity6
Short Arm Length0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
Style DesignatorL-HANDLE
Wrenching Surface ShapeSPLINE BOTH ENDS EXTERNAL
Long Arm Length2.406 INCHES MINIMUM AND 2.594 INCHES MAXIMUM
Federal Supply Class5120 — Hand Tools, Nonedged, Nonpowered
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 MS20 available?
We can source MS20 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 MS20 by Altech obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS20 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 MS20?
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 MS20?
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.