MIL-SPEC · Electronic Components
D38999/26FH21SN
MIL-DTL-38999 Series III circular connector, straight plug
Part NumberD38999/26FH21SN
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5935-01-406-0709 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Terminal TypeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
Overall Length33.16 MILLIMETERS MAXIMUM
Overall Diameter44.9 MILLIMETERS MAXIMUM
Body StyleSTRAIGHT SHAPE, INTERNAL COUPLING
Precious MaterialGOLD
Precious Material LocationCONTACT SURFACES GOLD
Contact Arrangement23-21 SINGLE MATING END
Included Contact Quantity21 SINGLE MATING END SINGLE CONTACT GROUPING
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material And Weight0.021 GOLD GRAINS, TROY
Federal Supply Class5935 — Connectors, Electrical
Contact Position Arrangement Style23-21 SINGLE MATING END
Mating End Quantity1
Precious Material And LocationCONTACT SURFACES GOLD
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 D38999/26FH21SN in stock?
Yes — D38999/26FH21SN is in our stock database. Request a quote for current pricing and lead time.
Is D38999/26FH21SN by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D38999/26FH21SN 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 D38999/26FH21SN?
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 D38999/26FH21SN?
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.