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798589 — WINDOW,OBSERVATION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

798589: WINDOW,OBSERVATION.

The WINDOW,OBSERVATION is a the manufacturer industrial component. Key specifications include material: GLASS LAMINATE, overall_width: 2.484 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN, overall_length: 2.859 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN, surface_finish: POLISHED, style_designator: ROUNDED CORNERS, overall_thickness: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 9340-00-171-4544, 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
798589
NSN: 9340-00-171-4544
FSC: 9340 — Glass Fabricated Materials
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialGLASS LAMINATE
ply_quantity1
overall_width2.484 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
overall_length2.859 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
surface_finishPOLISHED
style_designatorROUNDED CORNERS
overall_thickness0.250 INCHES NOMINAL IN
first_corner_radius0.094 INCHES NOMINAL IN
third_corner_radius0.094 INCHES NOMINAL IN
fourth_corner_radius0.094 INCHES NOMINAL IN
second_corner_radius0.094 INCHES NOMINAL IN
material_transparencyCLEAR
NSN9340-00-171-4544
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WINDOW,OBSERVATION TITLE COMPONENT PN 798589 MFR WINDOW,OBSERVATION
KEY FEATURES
•
FOURTH CORNER RADIUS: 0.094 INCHES NOMINAL IN
•
FIRST CORNER RADIUS: 0.094 INCHES NOMINAL IN
•
SECOND CORNER RADIUS: 0.094 INCHES NOMINAL IN
•
SURFACE FINISH: POLISHED
•
OVERALL THICKNESS: 0.250 INCHES NOMINAL IN
•
MATERIAL TRANSPARENCY: CLEAR
•
STYLE DESIGNATOR: ROUNDED CORNERS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-3787,CLASS 1,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
FOURTH CORNER RADIUS0.094 INCHES NOMINAL IN
FIRST CORNER RADIUS0.094 INCHES NOMINAL IN
SECOND CORNER RADIUS0.094 INCHES NOMINAL IN
SURFACE FINISHPOLISHED
OVERALL THICKNESS0.250 INCHES NOMINAL IN
MATERIAL TRANSPARENCYCLEAR
STYLE DESIGNATORROUNDED CORNERS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-3787,CLASS 1,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH2.859 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
OVERALL WIDTH2.484 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
99645Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 798589?
798589 is a WINDOW,OBSERVATION.
What parts can replace 798589?
There is 1 known substitute for 798589: 99645. Substitute compatibility should be verified for your specific system.
What is the NSN for 798589?
798589 is cataloged in the U.S. Government catalog under NSN 9340-00-171-4544. 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.