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1389471 — CONVERTER,DIRECT CURRENT TO DIRE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1389471: CONVERTER,DIRECT CURRENT TO DIRE.

CONVERTER,DIRECT CURRENT TO DIRE. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 25.4 MILLIMETERS NOMINAL MM, overall_height: 15.8 MILLIMETERS NOMINAL MM, overall_length: 40.6 MILLIMETERS NOMINAL MM, installation_design: PANEL, rectification_method: CONVERTER DC TO DC. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-202-3004, 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
1389471
NSN: 3110-01-202-3004
NIINs: 012023004, 017320439
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 75477 — FM AF, LLC DBA AMERICAN FAN COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width25.4 MILLIMETERS NOMINAL MM
overall_height15.8 MILLIMETERS NOMINAL MM
overall_length40.6 MILLIMETERS NOMINAL MM
installation_designPANEL
rectification_methodCONVERTER DC TO DC
output_current_ratingUNABLE TO DECODE
output_voltage_ratingUNABLE TO DECODE
input_connection_quantityUNABLE TO DECODE
output_connection_quantityUNABLE TO DECODE
operating_ambient_temp_range-40.0 TO 105.0 CELSIUS DEGC
electrical_power_source_relationshipOPERATING
NSN3110-01-202-3004
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1389471 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
3KK835Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FF12986 PIECE 18Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1389471?
1389471 is a CONVERTER,DIRECT CURRENT TO DIRE.
What parts can replace 1389471?
There are 2 known substitutes for 1389471: 3KK835, FF12986 PIECE 18. Substitute compatibility should be verified for your specific system.
What is the NSN for 1389471?
1389471 is cataloged in the U.S. Government catalog under NSN 3110-01-202-3004. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.