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171378-1 — FLANGE,WAVEGUIDE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

171378-1: FLANGE,WAVEGUIDE.

The FLANGE,WAVEGUIDE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY SINGLE FLANGE, flange_depth: 0.750 INCHES NOMINAL SINGLE FLANGE IN, flange_style: CONTACT TYPE SINGLE FLANGE, special_features: 125.0 IN. MICROINCH FINISH ON MACHINED SURFACES IN, flange_inside_width: 2.838 INCHES MINIMUM AND 2.842 INCHES MAXIMUM SINGLE FLANGE IN, flange_inside_height: 1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM SINGLE FLANGE IN.

This part is cataloged in the U.S. Government catalog under NSN 5985-00-113-5058, 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
171378-1
NSN: 5985-00-113-5058
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY SINGLE FLANGE
flange_depth0.750 INCHES NOMINAL SINGLE FLANGE IN
flange_styleCONTACT TYPE SINGLE FLANGE
special_features125.0 IN. MICROINCH FINISH ON MACHINED SURFACES IN
flange_inside_width2.838 INCHES MINIMUM AND 2.842 INCHES MAXIMUM SINGLE FLANGE IN
flange_inside_height1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM SINGLE FLANGE IN
flange_outside_width4.500 INCHES NOMINAL SINGLE FLANGE IN
flange_outside_height3.000 INCHES NOMINAL SINGLE FLANGE IN
flange_connecting_hole_diameter0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM SINGLE FLANGE SINGLE CONNECTION FACILITY IN
flange_connecting_facility_and_quantity10 UNTHREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY
NSN5985-00-113-5058
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FLANGE,WAVEGUIDE TITLE COMPONENT PN 171378-1 MFR FLANGE,WAVEGUIDE
KEY FEATURES
•
FLANGE INSIDE HEIGHT: 1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM SINGLE FLANGE IN
•
FLANGE OUTSIDE HEIGHT: 3.000 INCHES NOMINAL SINGLE FLANGE IN
•
FLANGE CONNECTING HOLE DIAMETER: 0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM SINGLE FLANGE SINGLE CONNECTION FACILITY IN
•
FLANGE INSIDE WIDTH: 2.838 INCHES MINIMUM AND 2.842 INCHES MAXIMUM SINGLE FLANGE IN
•
FLANGE DEPTH: 0.750 INCHES NOMINAL SINGLE FLANGE IN
•
FLANGE OUTSIDE WIDTH: 4.500 INCHES NOMINAL SINGLE FLANGE IN
•
MATERIAL: ALUMINUM ALLOY SINGLE FLANGE
TECHNICAL CHARACTERISTICS
FLANGE INSIDE HEIGHT1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM SINGLE FLANGE IN
FLANGE OUTSIDE HEIGHT3.000 INCHES NOMINAL SINGLE FLANGE IN
FLANGE CONNECTING HOLE DIAMETER0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM SINGLE FLANGE SINGLE CONNECTION FACILITY IN
FLANGE INSIDE WIDTH2.838 INCHES MINIMUM AND 2.842 INCHES MAXIMUM SINGLE FLANGE IN
FLANGE DEPTH0.750 INCHES NOMINAL SINGLE FLANGE IN
FLANGE OUTSIDE WIDTH4.500 INCHES NOMINAL SINGLE FLANGE IN
SPECIAL FEATURES125.0 IN. MICROINCH FINISH ON MACHINED SURFACES IN
MATERIALALUMINUM ALLOY SINGLE FLANGE
FLANGE CONNECTING FACILITY AND QUANTITY10 UNTHREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY
FLANGE STYLECONTACT TYPE SINGLE FLANGE
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 2
S-11809Reference document
Same NSN cross-reference
Reference document — Secondary reference
AR-WGF1100Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 171378-1?
171378-1 is a FLANGE,WAVEGUIDE.
What parts can replace 171378-1?
There are 2 known substitutes for 171378-1: S-11809, AR-WGF1100. Substitute compatibility should be verified for your specific system.
What is the NSN for 171378-1?
171378-1 is cataloged in the U.S. Government catalog under NSN 5985-00-113-5058. This indicates validated use in U.S. government and defense supply chains.
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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.