Deutsch · Electronic Components
D38999/20MC4PN
MIL-DTL-38999 Series III wall-mount receptacle, insert arrangement 4, pin contacts — circular aerospace connector
Part NumberD38999/20MC4PN
ManufacturerDeutsch
AvailabilityIn stock — ships fast
Specifications
NSN5935-01-489-1006 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Terminal TypePIN SINGLE MATING END ALL CONTACT GROUPINGS
Overall Length1.289 INCHES NOMINAL
Overall Width1.125 INCHES NOMINAL
Overall Height1.125 INCHES NOMINAL
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING
Contact Arrangement13-4 SINGLE MATING END
Included Contact Quantity4 SINGLE MATING END ALL CONTACT GROUPINGS
Distance Between Centerlines Of Mo0.906 INCHES NOMINAL
Terminal LocationBACK SINGLE MATING END ALL CONTACT GROUPINGS
Distance From Mounting Shoulder To0.820 INCHES NOMINAL
Federal Supply Class5935 — Connectors, Electrical
Contact Position Arrangement Style13-4 SINGLE MATING END
Center To Center Distance Between0.906 INCHES NOMINAL
Mating End Quantity1
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 D38999/20MC4PN in stock?
Yes — D38999/20MC4PN is in our stock database. Request a quote for current pricing and lead time.
Is D38999/20MC4PN by Deutsch obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D38999/20MC4PN 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 D38999/20MC4PN?
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 D38999/20MC4PN?
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.