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821901 — POWER SUPPLY SUBASSEMBLY

✓ Government record, cited
— · PSU
PRODUCT OVERVIEW

821901: POWER SUPPLY SUBASSEMBLY.

The POWER SUPPLY SUBASSEMBLY is a the manufacturer power supply unit built for continuous operation in enterprise server and storage platforms. This part is cataloged in the U.S. Government catalog under NSN 6130-01-157-9223, 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
821901
NSN: 6130-01-157-9223
NIINs: 011579223, 011942759, 015086729, 015536917
FSC: 6130 — Converters, Electrical, Nonrotating
CAGE: 48313 — B.C. SYSTEMS INC. DBA BC SYSTEMS INC (USA)
SPECIFICATIONS
NSN6130-01-157-9223
COMPONENT DIAGRAM
PULL TAB AIRFLOW —W PLATINUM 100-240V~ 50/60Hz OEM BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | —W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU —W PN 821901 MFR OEM Platinum
KEY FEATURES
•
MAJOR COMPONENTS: BRACKET,ELEC COMP 1;ELEC COMP ASSEMBLY 5;CIRCUIT CARD ASSEMBLY 1;CAPACITOR 4;TRANSISTOR 4
•
USAGE DESIGN: REGULATOR MODULE
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
TECHNICAL CHARACTERISTICS
MAJOR COMPONENTSBRACKET,ELEC COMP 1;ELEC COMP ASSEMBLY 5;CIRCUIT CARD ASSEMBLY 1;CAPACITOR 4;TRANSISTOR 4
END ITEM IDENTIFICATIONAN/URQ-33
USAGE DESIGNREGULATOR MODULE
SUBSTITUTES & CROSS-REFERENCES 1
5214-474Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 821901?
821901 is a POWER SUPPLY SUBASSEMBLY.
What parts can replace 821901?
There is 1 known substitute for 821901: 5214-474. Substitute compatibility should be verified for your specific system.
What is the NSN for 821901?
821901 is cataloged in the U.S. Government catalog under NSN 6130-01-157-9223. 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.