ABB Installation Products · Electronic Components
TB 144
Locknut, Electrical Conduit
Part NumberTB 144
ManufacturerABB Installation Products
AvailabilityAvailable to order — request a quote
Specifications
NSN5975-01-667-0611 (NSN)
Federal Item NameLOCKNUT,ELECTRICAL CONDUIT
Federal Supply Class5975 — Electrical Hardware and Supplies
Thread TypeSTRAIGHT
Outside Diameter2.156 INCHES NOMINAL
Overall Height0.203 INCHES NOMINAL
Drive TypeNOTCHED
MaterialSTEEL
Thread DirectionRIGHT-HAND
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 TB 144 available?
We can source TB 144 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 TB 144 by ABB Installation Products obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If TB 144 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 TB 144?
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 TB 144?
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.