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PartsTable / COMPONENT / 518783ALT B
518783ALT B ✓ 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 COVER,WAVEGUIDE FLANGE is a the manufacturer industrial component. Key specifications include material: STEEL, connection_style: ROUND EYE, special_features: TRIPPING LUG ATTACHED TO HOOK, style_designator: REGULAR, surface_treatment: ZINC, connection_inside_diameter: 1.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4030-00-290-6420, 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
518783ALT B
NSN: 4030-00-290-6420
FSC: 4030
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
connection_styleROUND EYE
special_featuresTRIPPING LUG ATTACHED TO HOOK
style_designatorREGULAR
surface_treatmentZINC
connection_inside_diameter1.750 INCHES NOMINAL IN
connection_to_body_relationshipPERPENDICULAR
NSN4030-00-290-6420
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COVER,WAVEGUIDE FLANGE TITLE COMPONENT PN 518783ALT B MFR COVER,WAVEGUIDE FLANGE
KEY FEATURES
•
CONNECTION STYLE: ROUND EYE
•
CONNECTION INSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
SURFACE TREATMENT: ZINC
•
CONNECTION TO BODY RELATIONSHIP: PERPENDICULAR
•
STYLE DESIGNATOR: REGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEROUND EYE
CONNECTION INSIDE DIAMETER1.750 INCHES NOMINAL IN
MATERIALSTEEL
SURFACE TREATMENTZINC
CONNECTION TO BODY RELATIONSHIPPERPENDICULAR
SPECIAL FEATURESTRIPPING LUG ATTACHED TO HOOK
STYLE DESIGNATORREGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5187832Interchangeable
interchangeable cross-reference
interchangeable
230171Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-17280Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 518783ALT B?
518783ALT B is a COVER,WAVEGUIDE FLANGE.
What parts can replace 518783ALT B?
There are 3 known substitutes for 518783ALT B: 5187832, 230171, MIL-F-17280. Substitute compatibility should be verified for your specific system.
Is 518783ALT B still available?
518783ALT B 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