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56538 — POWER SUPPLY

✓ Government record, cited
— · PSU
PRODUCT OVERVIEW

56538: POWER SUPPLY.

The POWER SUPPLY 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 5315-00-567-5799, 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
56538
NSN: 5315-00-567-5799
NIINs: 005675799, 010301306
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 82423 — KLEINSCHMIDT INC (USA)
SPECIFICATIONS
NSN5315-00-567-5799
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 56538 MFR OEM Platinum
KEY FEATURES
•
SHANK DIAMETER: 0.1840 INCHES MINIMUM AND 0.1855 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.164 INCHES NOMINAL IN
•
UNDERCUT WIDTH: 0.047 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.156 INCHES NOMINAL IN
•
FIRST END LOCATION: BOTH ENDS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232 TY MCL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.312 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
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
SHANK DIAMETER0.1840 INCHES MINIMUM AND 0.1855 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.164 INCHES NOMINAL IN
UNDERCUT WIDTH0.047 INCHES NOMINAL IN
UNDERCUT DIAMETER0.156 INCHES NOMINAL IN
FIRST END LOCATIONBOTH ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232 TY MCL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.312 INCHES NOMINAL IN
FIRST END STYLESQUARE
SHANK LENGTH1.262 INCHES NOMINAL IN
STYLE DESIGNATORUNDERCUT
SUBSTITUTES & CROSS-REFERENCES 1
SM-B-187123Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 56538?
56538 is a POWER SUPPLY.
What parts can replace 56538?
There is 1 known substitute for 56538: SM-B-187123. Substitute compatibility should be verified for your specific system.
What is the NSN for 56538?
56538 is cataloged in the U.S. Government catalog under NSN 5315-00-567-5799. 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.