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Technical Data Sheet
PartsTable / MRO / SMB683872-4
SMB683872-4 ✓ 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 TUNED CIRCUIT is a the manufacturer industrial component. Key specifications include material: METAL BODY, base_style: DOUBLE CONTACT BAYONET CANDELABRA, bulb_style: T (TUBULAR), design_type: NONREUSABLE, body_diameter: 9.223 INCHES NOMINAL IN, overall_length: 1.500 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5820-00-146-1235, 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→ SMB683872-4
NSN: 5820-00-146-1235
FSC: 5820
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialMETAL BODY
base_styleDOUBLE CONTACT BAYONET CANDELABRA
bulb_styleT (TUBULAR)
design_typeNONREUSABLE
body_diameter9.223 INCHES NOMINAL IN
overall_length1.500 INCHES MAXIMUM IN
wattage_rating0.040 WATTS
bulb_designatorT-4 1/2
filling_gas_typeNEON
special_featuresTOP ID 0.531 IN.,FIN OD 11.531 IN.,FURN W/GASKET OPEN END IN
style_designatorCYLINDRICAL W/AIR BAFFLES
rated_average_lifeHOURS
NSN5820-00-146-1235
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TUNED CIRCUIT TITLE COMPONENT PN SMB683872-4 MFR TUNED CIRCUIT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
NE48Interchangeable
interchangeable cross-reference
interchangeable
92437Interchangeable
interchangeable cross-reference
interchangeable
333056Interchangeable
interchangeable cross-reference
interchangeable
5214539Interchangeable
interchangeable cross-reference
interchangeable
7770222Interchangeable
interchangeable cross-reference
interchangeable
2208B204Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB683872-4?
SMB683872-4 is a TUNED CIRCUIT. It is classified as a MRO (MRO_GENERAL).
What parts can replace SMB683872-4?
There are 14 known substitutes for SMB683872-4: NE48, 92437, 333056 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB683872-4?
SMB683872-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5820-00-146-1235. 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