Abb Installation Products Inc. · Electronic Components
144
Locknut, Electrical Conduit
Part Number144
ManufacturerAbb Installation Products Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5975-00-152-1071 (NSN)
Federal Item NameLOCKNUT,ELECTRICAL CONDUIT
Federal Supply Class5975 — Electrical Hardware and Supplies
MaterialIRON MALLEABLE OR STEEL
Surface TreatmentCADMIUM OR ZINC
Overall Thickness0.203 INCHES NOMINAL
Conduit Size Accommodated1.250 INCHES NOMINAL
Width Across Flats2.156 INCHES NOMINAL
Nondefinitive Spec Std DataA CLASS AND 1 TYPE
Drive TypeSPANNER
Outside Diameter2.016 INCHES NOMINAL
Thread Size1-1/4-11-1/2
Departure From Cited DesignatorAS MODIFIED BY MATERIAL AND SURFACE TREATMENT
Thread TypeSTRAIGHT
Cancelled NSN5975-00-501-3945 (cancelled)
Overall Height11.500 INCHES NOMINAL
Overall Width8.500 INCHES NOMINAL
Frequency Range Rating+0.0000005 TO 9999.9999999 KILOHERTZ
Voltage Rating115.0 VOLTS NOMINAL AND 225.0 VOLTS NOMINAL
Output Impedance Rating50.0 OHMS NOMINAL
Current TypeDC
Overall Length5.250 INCHES NOMINAL
Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
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 144 available?
We can source 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 144 by Abb Installation Products Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 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 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 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.