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763-8559-001 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

763-8559-001: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, outside_diameter: 7.375 INCHES NOMINAL IN, special_features: TWELVE UNTHREADED BOLT ACCOMMODATING PERIMETER HOLES; FOUR UNTHREADED HOLES IN CAVITY; 0.6562 IN. H; 0.0937 IN.

THK IN, securing_device_type: SPECIAL. This part is cataloged in the U.S. Government catalog under NSN 5340-00-985-3582, 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
763-8559-001
NSN: 5340-00-985-3582
FSC: 5340 — Hardware, Commercial
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
outside_diameter7.375 INCHES NOMINAL IN
special_featuresTWELVE UNTHREADED BOLT ACCOMMODATING PERIMETER HOLES; FOUR UNTHREADED HOLES IN CAVITY; 0.6562 IN. H; 0.0937 IN. THK IN
securing_device_typeSPECIAL
NSN5340-00-985-3582
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 763-8559-001 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 7.375 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPECIAL
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER7.375 INCHES NOMINAL IN
SECURING DEVICE TYPESPECIAL
SPECIAL FEATURESTWELVE UNTHREADED BOLT ACCOMMODATING PERIMETER HOLES; FOUR UNTHREADED HOLES IN CAVITY; 0.6562 IN. H; 0.0937 IN. THK IN
MATERIALALUMINUM ALLOY
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 763-8559-001?
763-8559-001 is a COVER,ACCESS.
What is the NSN for 763-8559-001?
763-8559-001 is cataloged in the U.S. Government catalog under NSN 5340-00-985-3582. 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.