Heyco · Electronic Components
3999
Mounting Hardware KOS1 1.375 SILVER GRAY
Part Number3999
ManufacturerHeyco
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-01-095-3829 (NSN)
Federal Item NameCAPACITOR,FIXED,METALLIZED,PAPER
Federal Supply Class5910 — Capacitors
Terminal Surface TreatmentSOLDER
Schematic Diagram DesignatorNO COMMON OR GROUNDED ELECTRODE(S)
Tolerance Range Per Section-1.00 TO 1.00 PERCENT SINGLE SECTION
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM
Body Length0.541 INCHES NOMINAL
Terminal Length2.156 INCHES NOMINAL
MaterialPLASTIC CASE
Body Diameter0.344 INCHES NOMINAL
Capacitance Value Per Section1.500 MICROFARADS SINGLE SECTION
Terminal Type And Quantity2 UNINSULATED WIRE LEAD
Terminal Diameter0.029 INCHES NOMINAL
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 3999 available?
We can source 3999 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 3999 by Heyco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3999 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 3999?
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 3999?
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.