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408645 ✓ 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 CIRCULATOR,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include lining_width: 5.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, lining_length: 9.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 2.000 INCHES NOMINAL IN, nonsupply_item: RAYBESTOS 4056D LINING SET BRAKE 1,RAYBESTOS 3/8 BY 1-1/2 IN. BOLT W/NUT 32 IN, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 5.472 INCHES NOMINAL IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-649-4413, 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
408645
NSN: 6625-00-649-4413
FSC: 6625
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
lining_width5.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
lining_length9.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.000 INCHES NOMINAL IN
nonsupply_itemRAYBESTOS 4056D LINING SET BRAKE 1,RAYBESTOS 3/8 BY 1-1/2 IN. BOLT W/NUT 32 IN
overall_height1.000 INCHES NOMINAL IN
overall_length5.472 INCHES NOMINAL IN
lining_quantity8 LOCATION NOT OTHERWISE SPECIFIED
lining_thickness0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
special_featuresBACKING MATERIAL: POLYIRON
mounting_configurationHELD IN PLACE BY WAVEGUIDE FLANGE COVER
end_item_identificationVORTAC-GROUND STATION
drum_diameter_for_which_designed17.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN6625-00-649-4413
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCULATOR,RADIO FREQUENCY TITLE COMPONENT PN 408645 MFR CIRCULATOR,RADIO FREQU
KEY FEATURES
•
MOUNTING CONFIGURATION: HELD IN PLACE BY WAVEGUIDE FLANGE COVER
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING CONFIGURATIONHELD IN PLACE BY WAVEGUIDE FLANGE COVER
SPECIAL FEATURESBACKING MATERIAL: POLYIRON
OVERALL WIDTH0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
OVERALL LENGTH1.010 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
OVERALL HEIGHT0.522 INCHES NOMINAL IN
MOUNTING CONFIGURATIONHELD IN PLACE BY WAVEGUIDE FLANGE COVER
SPECIAL FEATURESBACKING MATERIAL: POLYIRON
OVERALL WIDTH0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
OVERALL LENGTH1.010 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
OVERALL HEIGHT0.522 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
2156140Interchangeable
interchangeable cross-reference
interchangeable
7002184Interchangeable
interchangeable cross-reference
interchangeable
MPS166Interchangeable
interchangeable cross-reference
interchangeable
61A352Interchangeable
interchangeable cross-reference
interchangeable
408645Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 408645?
408645 is a CIRCULATOR,RADIO FREQUENCY.
What parts can replace 408645?
There are 5 known substitutes for 408645: 2156140, 7002184, MPS166 and 2 more. Substitute compatibility should be verified for your specific system.
Is 408645 still available?
408645 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