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404399 — ATTENUATOR,VARIABLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

404399: ATTENUATOR,VARIABLE.

The ATTENUATOR,VARIABLE is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, body_style: COAXIAL TYPE, overall_width: 5.000 INCHES NOMINAL IN, overall_height: 3.000 INCHES NOMINAL IN, overall_length: 7.125 INCHES NOMINAL IN, frequency_range: 1000.000 GIGAHERTZ MINIMUM AND 1150.000 GIGAHERTZ MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-792-3120, 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
404399
NSN: 5365-00-792-3120
NIINs: 007923120, 007986689, 011433484, 012604861
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
body_styleCOAXIAL TYPE
overall_width5.000 INCHES NOMINAL IN
overall_height3.000 INCHES NOMINAL IN
overall_length7.125 INCHES NOMINAL IN
frequency_range1000.000 GIGAHERTZ MINIMUM AND 1150.000 GIGAHERTZ MAXIMUM
special_featuresVARIABLE ATTENUATOR
surface_treatmentANODIZE OVERALL
application_designTRANSMISSION LINE
step_position_quantity80
end_item_identificationDME 9639, FA-9639
attenuation_variation_methodSTEPPED
NSN5365-00-792-3120
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,VARIABLE TITLE COMPONENT PN 404399 MFR ATTENUATOR,VARIABLE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 404399?
404399 is a ATTENUATOR,VARIABLE.
What is the NSN for 404399?
404399 is cataloged in the U.S. Government catalog under NSN 5365-00-792-3120. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.