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TR78249 — WAVEGUIDE ASSEMBLY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

TR78249: WAVEGUIDE ASSEMBLY.

The WAVEGUIDE ASSEMBLY is a the manufacturer industrial component. Key specifications include flange_depth: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SECOND FLANGE IN, flange_style: COVER TYPE SECOND FLANGE, flange_inside_width: 2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN, flange_inside_height: 0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN, waveguide_inside_width: 1.872 INCHES NOMINAL IN, flange_outside_diameter: 3.640 INCHES MAXIMUM SECOND FLANGE IN. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-911-1607, 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
TR78249
NSN: 5985-00-911-1607
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 06351 — MICROWAVE ENGINEERING CORPORATION (USA)
SPECIFICATIONS
flange_depth0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SECOND FLANGE IN
flange_styleCOVER TYPE SECOND FLANGE
flange_quantity2
flange_inside_width2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN
flange_inside_height0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN
waveguide_inside_width1.872 INCHES NOMINAL IN
flange_outside_diameter3.640 INCHES MAXIMUM SECOND FLANGE IN
waveguide_inside_height0.872 INCHES NOMINAL IN
waveguide_outside_width2.000 INCHES NOMINAL IN
waveguide_outside_height1.000 INCHES NOMINAL IN
cross-sectional_shape_styleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
flange_connecting_facility_and_quantity8 UNTHREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY
NSN5985-00-911-1607
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WAVEGUIDE ASSEMBLY TITLE COMPONENT PN TR78249 MFR WAVEGUIDE ASSEMBLY
KEY FEATURES
•
FLANGE INSIDE HEIGHT: 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN
•
FLANGE QUANTITY: 2
•
WAVEGUIDE INSIDE WIDTH: 1.872 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
•
FLANGE INSIDE WIDTH: 2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN
•
WAVEGUIDE OUTSIDE HEIGHT: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE INSIDE HEIGHT1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN
FLANGE INSIDE HEIGHT0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN
FLANGE QUANTITY2
WAVEGUIDE INSIDE WIDTH1.872 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
FLANGE INSIDE WIDTH2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN
FLANGE INSIDE WIDTH1.868 INCHES MINIMUM AND 1.876 INCHES MAXIMUM FIRST FLANGE IN
WAVEGUIDE OUTSIDE HEIGHT1.000 INCHES NOMINAL IN
WAVEGUIDE OUTSIDE WIDTH2.000 INCHES NOMINAL IN
FLANGE DEPTH0.922 INCHES MINIMUM AND 0.953 INCHES MAXIMUM FIRST FLANGE IN
OTHER ITEMS IN FSC 5985 — Antennas, Waveguides, and Related Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5985-00-001-1854 5985-00-001-1862 5985-00-001-1869 5985-00-001-1870 5985-00-001-1871 5985-00-001-1874 5985-00-001-1875 5985-00-001-1876
SUBSTITUTES & CROSS-REFERENCES 1
AW82357-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is TR78249?
TR78249 is a WAVEGUIDE ASSEMBLY.
What parts can replace TR78249?
There is 1 known substitute for TR78249: AW82357-3. Substitute compatibility should be verified for your specific system.
What is the NSN for TR78249?
TR78249 is cataloged in the U.S. Government catalog under NSN 5985-00-911-1607. 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.