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X281A — ADAPTER,WAVEGUIDE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

X281A: ADAPTER,WAVEGUIDE.

The ADAPTER,WAVEGUIDE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY SINGLE TUBING SEGMENT, flange_depth: 0.438 INCHES NOMINAL SINGLE FLANGE IN, flange_style: COVER TYPE SINGLE FLANGE, adapter_height: 1.625 INCHES NOMINAL IN, adapter_length: 2.000 INCHES NOMINAL IN, style_designator: WAVEGUIDE TO COAXIAL. This part is cataloged in the U.S.

Government catalog under NSN 4940-00-406-4631, 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
X281A
NSN: 4940-00-406-4631
NIINs: 004064631, 005536082, 016655796
FSC: 4940 — Miscellaneous Maintenance and Repair Shop Specialized Equipment
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY SINGLE TUBING SEGMENT
flange_depth0.438 INCHES NOMINAL SINGLE FLANGE IN
flange_styleCOVER TYPE SINGLE FLANGE
adapter_height1.625 INCHES NOMINAL IN
adapter_length2.000 INCHES NOMINAL IN
flange_quantity1
style_designatorWAVEGUIDE TO COAXIAL
flange_inside_width1.003 INCHES NOMINAL SINGLE FLANGE IN
connector_end_designFEMALE
flange_inside_height0.505 INCHES NOMINAL SINGLE FLANGE IN
flange_outside_width1.625 INCHES NOMINAL SINGLE FLANGE IN
adapter_overall_width1.625 INCHES NOMINAL IN
NSN4940-00-406-4631
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ADAPTER,WAVEGUIDE TITLE COMPONENT PN X281A MFR ADAPTER,WAVEGUIDE
SUBSTITUTES & CROSS-REFERENCES 1
11731048Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is X281A?
X281A is a ADAPTER,WAVEGUIDE.
What parts can replace X281A?
There is 1 known substitute for X281A: 11731048. Substitute compatibility should be verified for your specific system.
What is the NSN for X281A?
X281A is cataloged in the U.S. Government catalog under NSN 4940-00-406-4631. 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.