MIL-SPEC · Electronic Components
M39029/57-357
MIL-DTL-39029/57 crimp socket contact, wire size 20 AWG, dash 357 — QPL mil-spec connector contact
Part NumberM39029/57-357
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5999-01-158-1562 (NSN)
Federal Item NameCONTACT,ELECTRICAL
MaterialCOPPER ALLOY BODY; COPPER ALLOY CONTACT
Terminals1 CRIMP AND SOLDER AXIALLY AT ONE END
Mounting MethodFORCE FIT
Overall Length0.518 INCHES NOMINAL
Overall Diameter0.091 INCHES MINIMUM AND 0.094 INCHES MAXIMUM
Precious MaterialGOLD
Precious Material LocationBODY AND CONTACT SURFACES GOLD
Special FeaturesBASIC IDENT NO.-BIN-357
Pin Accommodation Diameter0.042 INCHES MINIMUM
Pin Accommodation Length0.166 INCHES MINIMUM
Federal Supply Class5999 — Miscellaneous Electrical And Electronic Components
Terminal Type And Quantity1 CRIMP AND SOLDER AXIALLY AT ONE END
Cable Entrance Diameter0.046 INCHES MINIMUM AND 0.048 INCHES MAXIMUM
Surface TreatmentGOLD BODY
Style DesignatorSOCKET CONTACT
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 M39029/57-357 in stock?
Yes — M39029/57-357 is in our stock database. Request a quote for current pricing and lead time.
Is M39029/57-357 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M39029/57-357 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 M39029/57-357?
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 M39029/57-357?
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.