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Technical Data Sheet
PartsTable / MRO / 21939
21939 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
SAS cables have specific lane counts: 4i (internal) or 4e (external) Cable length matters — too short won't reach, too long creates clutter
Verify connector type on BOTH ends — many SAS cables are asymmetric
PRODUCT OVERVIEW

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include general_characteristics_item_description: THERMOSTAT COVER,DIAL MARKINGS,55 TO 85 DEGREES F,SATIN CHROME METAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-067-1100, 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
MRO→ MRO_GENERAL→ 21939
NSN: 5998-01-067-1100
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 08539 — QUANTA SYSTEMS CORP DBA DATA-CONTROL SYSTEMS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionTHERMOSTAT COVER,DIAL MARKINGS,55 TO 85 DEGREES F,SATIN CHROME METAL
NSN5998-01-067-1100
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN 21939 MFR RESISTOR,VARIABLE,NONWIRE WOUND,
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPRINTED WIRING BOARD 1; CAPACITOR 13; RESISTOR 4; MICROCIRCUIT 2
SPECIAL FEATURESPRINTED WIRING BOARD 1; CAPACITOR 13; RESISTOR 4; MICROCIRCUIT 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
RS105Interchangeable
interchangeable cross-reference
interchangeable
MDA106AInterchangeable
interchangeable cross-reference
interchangeable
497.791Interchangeable
interchangeable cross-reference
interchangeable
02-1939Interchangeable
interchangeable cross-reference
interchangeable
6515NCM021308Interchangeable
interchangeable cross-reference
interchangeable
GFD-402-520-1KHZInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21939?
21939 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21939?
There are 6 known substitutes for 21939: RS105, MDA106A, 497.791 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21939?
21939 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-067-1100. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026