Spang · Electronic Components
3721A
Amplifier, Magnetic
Part Number3721A
ManufacturerSpang
AvailabilityAvailable to order — request a quote
Specifications
NSN5996-00-559-9718 (NSN)
Federal Item NameAMPLIFIER,MAGNETIC
Federal Supply Class5996 — Amplifiers
Nominal Thread Size0.164 INCHES SINGLE GROUP
Body Height3.000 INCHES MAXIMUM
Overall Height3.375 INCHES MAXIMUM
Center To Center Distance Between2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Inclosure TypeFULLY INCLOSED
Terminal Type And Quantity16 TURRET
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Overall Width3.062 INCHES NOMINAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Vendor Part Numbers28032
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 3721A available?
We can source 3721A 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 3721A by Spang obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3721A 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 3721A?
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 3721A?
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.