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526-12781 — POWER SUPPLY SUBASSEMBLY

✓ Government record, cited
— · PSU
PRODUCT OVERVIEW

526-12781: 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 4820-01-524-8962, 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
526-12781
NSN: 4820-01-524-8962
FSC: 4820 — Valves, Nonpowered
CAGE: 3AJ77 — ROLLS-ROYCE CANADA LIMITED DIV ROLLS-ROYCE CANADA LIMITED (CAN)
SPECIFICATIONS
NSN4820-01-524-8962
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 526-12781 MFR OEM Platinum
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
SPECIAL FEATURESSCREW ADJUSTMENT WITH LOCKNUT AND PROTECTIVE CAP; SIZE SAE 6, -4; 7/16-20; THREADED CONNECTIONS; 2900 PSI; SAE THREADED HOUSING; OPERATING PRESSURE RANGE INLET P 5800 AND OUTLET T 4600 PSI
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE, PRESSURE RELIEF, NG6, DIRECT OPERATED
END ITEM IDENTIFICATIONALOFTS SONAR SYSTEM MODEL 980 (V1)
SUBSTITUTES & CROSS-REFERENCES 1
005539Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 526-12781?
526-12781 is a POWER SUPPLY SUBASSEMBLY.
What parts can replace 526-12781?
There is 1 known substitute for 526-12781: 005539. Substitute compatibility should be verified for your specific system.
What is the NSN for 526-12781?
526-12781 is cataloged in the U.S. Government catalog under NSN 4820-01-524-8962. 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.