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PartsTable / COMPONENT / 138C028H01
138C028H01 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include duty_type: CONTINUOUS, thread_class: 2A SINGLE MOUNTING FACILITY A, overall_width: 1.531 INCHES MAXIMUM IN, overall_height: 1.531 INCHES MAXIMUM IN, overall_length: 2.440 INCHES MAXIMUM IN, frequency_in_hertz: 400.0 NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-424-9461, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
138C028H01
NSN: 5945-00-424-9461
FSC: 5945
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
duty_typeCONTINUOUS
thread_class2A SINGLE MOUNTING FACILITY A
coil_quantity1
overall_width1.531 INCHES MAXIMUM IN
overall_height1.531 INCHES MAXIMUM IN
overall_length2.440 INCHES MAXIMUM IN
winding_quantity1
frequency_in_hertz400.0 NOMINAL
nominal_thread_size0.138 INCHES SINGLE MOUNTING FACILITY IN
environmental_protectionHERMETIC
thread_quantity_per_inch32 SINGLE MOUNTING FACILITY
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
NSN5945-00-424-9461
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 138C028H01 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
FREQUENCY IN HERTZ: 400.0 NOMINAL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP: 135.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
THREAD CLASS: 2A SINGLE MOUNTING FACILITY A
•
MOUNTING FACILITY PATTERN: RECTANGULAR SINGLE MOUNTING FACILITY
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH1.531 INCHES MAXIMUM IN
FREQUENCY IN HERTZ400.0 NOMINAL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP135.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
THREAD CLASS2A SINGLE MOUNTING FACILITY A
MOUNTING FACILITY PATTERNRECTANGULAR SINGLE MOUNTING FACILITY
MOUNTING FACILITY TYPE AND QUANTITY4 THREADED STUD(S) SINGLE MOUNTING FACILITY
NONPILE-UP MAIN CONTACT ARRANGEMENT2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
9037Interchangeable
interchangeable cross-reference
interchangeable
5-20Interchangeable
interchangeable cross-reference
interchangeable
123SCAV5261-3Interchangeable
interchangeable cross-reference
interchangeable
2034-5005Interchangeable
interchangeable cross-reference
interchangeable
610-1Interchangeable
interchangeable cross-reference
interchangeable
TC330Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 138C028H01?
138C028H01 is a RELAY,ELECTROMAGNETIC.
What parts can replace 138C028H01?
There are 19 known substitutes for 138C028H01: 9037, 5-20, 123SCAV5261-3 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 138C028H01?
138C028H01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-424-9461. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026