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12311890-21
U S Army Tank Automotive Command Amsta-Im-Mm · Electronic Components
12311890-21
Backshell, Electrical Connector
Part Number12311890-21
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
AvailabilityAvailable to order
Specifications
NSN5935-01-518-9152 (NSN)
Federal Item NameBACKSHELL,ELECTRICAL CONNECTOR
Federal Supply Class5935 — Connectors, Electrical
Nominal Thread Size1.062 INCHES
MaterialALUMINUM ALLOY
Surface TreatmentCADMIUM AND CHROMATE AND NICKEL
Style DesignatorSTRAIGHT SHAPE SOLID TYPE
Overall Length1.305 INCHES NOMINAL
Overall Diameter1.218 INCHES MAXIMUM
Thread Series DesignatorUNEF
Thread Class2B
Thread Quantity Per Inch18
Thread DirectionRIGHT-HAND
Mounting Facility Type And Quantit1 THREADED COUPLING
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 12311890-21 in stock?
We can source 12311890-21 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 12311890-21 by U S Army Tank Automotive Command Amsta-Im-Mm obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 12311890-21 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 12311890-21?
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 12311890-21?
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.