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Technical Data Sheet
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2803Q563 — 2803Q563

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2803Q563: 2803Q563.

The 2803Q563 is a the manufacturer industrial component. Key specifications include material: STEEL, construction: ONE-PIECE, hole_diameter: 0.469 INCHES NOMINAL IN, overall_width: 5.750 INCHES NOMINAL IN, style_designator: NON-CIRCULAR W/APERTURE, aperture_diameter: 3.906 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-353-2594, 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
2803Q563
NSN: 5365-00-353-2594
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
hole_diameter0.469 INCHES NOMINAL IN
overall_width5.750 INCHES NOMINAL IN
style_designatorNON-CIRCULAR W/APERTURE
aperture_diameter3.906 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter4.875 INCHES NOMINAL IN
outside_corner_radius0.438 INCHES NOMINAL IN
outside_corner_inverted_radius0.438 INCHES NOMINAL IN
side_radius_from_gasket_center2.562 INCHES NOMINAL IN
material_document_and_classificationB-15,FSCM 78500 MFR REF SINGLE MATERIAL RESPONSE
NSN5365-00-353-2594
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 2803Q563 TITLE COMPONENT PN 2803Q563 MFR 2803Q563
KEY FEATURES
•
SIDE RADIUS FROM GASKET CENTER: 2.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR W/APERTURE
•
MATERIAL DOCUMENT AND CLASSIFICATION: B-15,FSCM 78500 MFR REF SINGLE MATERIAL RESPONSE
•
OUTSIDE CORNER INVERTED RADIUS: 0.438 INCHES NOMINAL IN
•
APERTURE DIAMETER: 3.906 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 4.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SIDE RADIUS FROM GASKET CENTER2.562 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR W/APERTURE
MATERIAL DOCUMENT AND CLASSIFICATIONB-15,FSCM 78500 MFR REF SINGLE MATERIAL RESPONSE
OVERALL WIDTH5.750 INCHES NOMINAL IN
OUTSIDE CORNER INVERTED RADIUS0.438 INCHES NOMINAL IN
APERTURE DIAMETER3.906 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER4.875 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.438 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
P2645Reference document
Same NSN cross-reference
Reference document — Secondary reference
73188Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2803Q563?
2803Q563 is a 2803Q563.
What parts can replace 2803Q563?
There are 2 known substitutes for 2803Q563: P2645, 73188. Substitute compatibility should be verified for your specific system.
What is the NSN for 2803Q563?
2803Q563 is cataloged in the U.S. Government catalog under NSN 5365-00-353-2594. 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.