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Technical Data Sheet
PartsTable / COMPONENT / MIL-E-1/858
MIL-E-1/858 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The MIL-E-1/858 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-553-7091, 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
MIL-E-1/858
NSN: 5960-00-553-7091
FSC: 5960
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-E-1/858
NSN5960-00-553-7091
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MIL-E-1/858 TITLE COMPONENT PN MIL-E-1/858 MFR MIL-E-1/858
KEY FEATURES
•
TUBE TYPE: VOLTAGE REGULATOR
•
NONDEFINITIVE SPEC/STD DATA: 6542 TYPE
TECHNICAL CHARACTERISTICS (FLIS)
TUBE TYPEVOLTAGE REGULATOR
NONDEFINITIVE SPEC/STD DATA6542 TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
6542Interchangeable
interchangeable cross-reference
interchangeable
SM-B-61155Interchangeable
interchangeable cross-reference
interchangeable
6029Interchangeable
interchangeable cross-reference
interchangeable
GY13655Interchangeable
interchangeable cross-reference
interchangeable
358346C91Interchangeable
interchangeable cross-reference
interchangeable
968815R31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-E-1/858?
MIL-E-1/858 is a MIL-E-1/858.
What parts can replace MIL-E-1/858?
There are 20 known substitutes for MIL-E-1/858: 6542, SM-B-61155, 6029 and 17 more. Substitute compatibility should be verified for your specific system.
Is MIL-E-1/858 still available?
MIL-E-1/858 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026