Lockheed Martin Corporation · Electronic Components
188283
Ring, Electrical Contact
Part Number188283
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-503-9517 (NSN)
Federal Item NameRING,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
MaterialSILVER
Overall Diameter3.188 INCHES NOMINAL
Wire Size Awg24AWG to 12AWG
RohscompliantYES
Wire Connection MethodScrew
Hazardousfalse
RohsphthalatescompliantYES
Rated Current12 A
Product RangeCLASSIC COMBICON MSTB
IscanonicalY
Conductor Area Csa2.5 mm²
No Of Positions5 Positions
SvhcNo SVHC (04-Feb-2026)
Pitch Spacing5.08 mm
ProducttraceabilityNo
UseccnEAR99
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 188283 available?
We can source 188283 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 188283 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 188283 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 188283?
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 188283?
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.