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PartsTable / COMPONENT / L3990
L3990 ✓ 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 TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include tube_type: MAGNETRON, special_features: FIREFLY 2;COLOR: OD GREEN & BLACK; USES 2 AA BATTERIES;BLUE LENS DETENT MECHANISM INCLUDED;NVG COMPATIBLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-406-9769, 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
L3990
NSN: 5960-00-406-9769
FSC: 5960
CAGE: 80080 — L3 TECHNOLOGIES, INC. DBA ELECTRON DEVICES (USA)
SPECIFICATIONS
tube_typeMAGNETRON
special_featuresFIREFLY 2;COLOR: OD GREEN & BLACK; USES 2 AA BATTERIES;BLUE LENS DETENT MECHANISM INCLUDED;NVG COMPATIBLE
NSN5960-00-406-9769
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,RADIO FREQUENCY TITLE COMPONENT PN L3990 MFR TRANSFORMER,RADIO FREQ
KEY FEATURES
•
TUBE TYPE: MAGNETRON
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESENVELOPE MATERIAL: CERAMIC
TUBE TYPEMAGNETRON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
HM1-034-2Interchangeable
interchangeable cross-reference
interchangeable
RM134Interchangeable
interchangeable cross-reference
interchangeable
SM-D-589133Interchangeable
interchangeable cross-reference
interchangeable
SM-D-589129Interchangeable
interchangeable cross-reference
interchangeable
6230PL1633057Interchangeable
interchangeable cross-reference
interchangeable
3990Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L3990?
L3990 is a TRANSFORMER,RADIO FREQUENCY.
What parts can replace L3990?
There are 8 known substitutes for L3990: HM1-034-2, RM134, SM-D-589133 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L3990?
L3990 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-406-9769. 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