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PartsTable / COMPONENT / ST21900043
ST21900043 ✓ 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 TERMINAL,LUG is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.188 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-155-7688, 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
ST21900043
NSN: 5940-00-155-7688
FSC: 5940
CAGE: 81395 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DBA BAE SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.188 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch28
NSN5940-00-155-7688
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TERMINAL,LUG TITLE COMPONENT PN ST21900043 MFR TERMINAL,LUG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
14124Interchangeable
interchangeable cross-reference
interchangeable
59756HInterchangeable
interchangeable cross-reference
interchangeable
SSL1412-4Interchangeable
interchangeable cross-reference
interchangeable
100003202Interchangeable
interchangeable cross-reference
interchangeable
KT-196Interchangeable
interchangeable cross-reference
interchangeable
10043943-68Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST21900043?
ST21900043 is a TERMINAL,LUG.
What parts can replace ST21900043?
There are 27 known substitutes for ST21900043: 14124, 59756H, SSL1412-4 and 24 more. Substitute compatibility should be verified for your specific system.
Is ST21900043 still available?
ST21900043 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026