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ATAN900R1 — ADAPTER,WAVEGUIDE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

ATAN900R1: ADAPTER,WAVEGUIDE.

The ADAPTER,WAVEGUIDE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SINGLE TUBING SEGMENT AND FLANGE, flange_depth: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM SINGLE FLANGE IN, flange_style: COVER TYPE SINGLE FLANGE, adapter_height: 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN, adapter_length: 2.690 INCHES MINIMUM AND 2.730 INCHES MAXIMUM IN, special_features: OPERATING TEMPERATURE MINUS 40 TO PLUS 40 DEG C DEGC. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-421-2563, 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
ATAN900R1
NSN: 5985-00-421-2563
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 28916 — ATLANTIC MICROWAVE CORPORATION DIV COBHAM ELECTRONIC SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY SINGLE TUBING SEGMENT AND FLANGE
flange_depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM SINGLE FLANGE IN
flange_styleCOVER TYPE SINGLE FLANGE
adapter_height1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
adapter_length2.690 INCHES MINIMUM AND 2.730 INCHES MAXIMUM IN
flange_quantity1
special_featuresOPERATING TEMPERATURE MINUS 40 TO PLUS 40 DEG C DEGC
bend_angle_in_deg90.0 SINGLE BEND H-PLANE
precious_materialSILVER AND RHODIUM
surface_treatmentSILVER AND RHODIUM SINGLE TUBING SEGMENT AND FLANGE OUTSIDE SURFACES
flange_inside_width1.003 INCHES MINIMUM SINGLE FLANGE IN
connector_end_designFEMALE
NSN5985-00-421-2563
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ADAPTER,WAVEGUIDE TITLE COMPONENT PN ATAN900R1 MFR ADAPTER,WAVEGUIDE
KEY FEATURES
•
FSC APPLICATION DATA: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
•
TUBING WALL CONSTRUCTION STYLE: SEAMLESS SINGLE TUBING SEGMENT
•
FLANGE INSIDE HEIGHT: 0.503 INCHES MINIMUM SINGLE FLANGE IN
•
FLANGE QUANTITY: 1
•
PRECIOUS MATERIAL: SILVER AND RHODIUM
•
VOLTAGE STANDING WAVE RATIO: 1.25
•
ADAPTER OVERALL WIDTH: 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
•
BEND ANGLE IN DEG: 90.0 SINGLE BEND H-PLANE
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
TUBING WALL CONSTRUCTION STYLESEAMLESS SINGLE TUBING SEGMENT
FLANGE INSIDE HEIGHT0.503 INCHES MINIMUM SINGLE FLANGE IN
FLANGE QUANTITY1
PRECIOUS MATERIALSILVER AND RHODIUM
VOLTAGE STANDING WAVE RATIO1.25
ADAPTER OVERALL WIDTH1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
BEND ANGLE IN DEG90.0 SINGLE BEND H-PLANE
WAVEGUIDE INSIDE WIDTH0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN
CONNECTOR END DESIGNFEMALE
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
ATAN900Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ATAN900R1?
ATAN900R1 is a ADAPTER,WAVEGUIDE.
What parts can replace ATAN900R1?
There is 1 known substitute for ATAN900R1: ATAN900. Substitute compatibility should be verified for your specific system.
What is the NSN for ATAN900R1?
ATAN900R1 is cataloged in the U.S. Government catalog under NSN 5985-00-421-2563. 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.