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Technical Data Sheet
PartsTable / MRO / 21369-983-3
21369-983-3 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 SWITCHING UNIT,POWER TRANSFER is a the manufacturer industrial component. Key specifications include current_rating: 300.000 AMPERES, end_item_identification: AUTOMATIC BUS TRANSFER 300 AMP, 3 PHASE, 60 HERTZ, voltage_in_volts_and_current_type: 450.0 AC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-579-4743, 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
MRO→ MRO_GENERAL→ 21369-983-3
NSN: 5930-01-579-4743
FSC: 5930
CAGE: 63743 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
current_rating300.000 AMPERES
end_item_identificationAUTOMATIC BUS TRANSFER 300 AMP, 3 PHASE, 60 HERTZ
voltage_in_volts_and_current_type450.0 AC
NSN5930-01-579-4743
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCHING UNIT,POWER TRANSFER TITLE COMPONENT PN 21369-983-3 MFR SWITCHING UNIT,POWER T
KEY FEATURES
•
CURRENT RATING: 300.000 AMPERES
•
VOLTAGE IN VOLTS AND CURRENT TYPE: 450.0 AC
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT RATING300.000 AMPERES
END ITEM IDENTIFICATIONAUTOMATIC BUS TRANSFER 300 AMP, 3 PHASE, 60 HERTZ
VOLTAGE IN VOLTS AND CURRENT TYPE450.0 AC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
MIL-PRF-17773CInterchangeable
interchangeable cross-reference
interchangeable
M17773-4A03X300DInterchangeable
interchangeable cross-reference
interchangeable
24987.25Interchangeable
interchangeable cross-reference
interchangeable
24987.25 PC NO 1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21369-983-3?
21369-983-3 is a SWITCHING UNIT,POWER TRANSFER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21369-983-3?
There are 4 known substitutes for 21369-983-3: MIL-PRF-17773C, M17773-4A03X300D, 24987.25 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21369-983-3?
21369-983-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-579-4743. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026