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6531-70-807-1041 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6531-70-807-1041: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, ear_radius: 1.250 INCHES NOMINAL IN, body_radius: 4.000 INCHES NOMINAL IN, body_thickness: 0.685 INCHES NOMINAL IN, flange_thickness: 0.125 INCHES NOMINAL IN, bolt_circle_diameter: 16.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-139-6829, 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
6531-70-807-1041
NSN: 5340-01-139-6829
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
ear_radius1.250 INCHES NOMINAL IN
body_radius4.000 INCHES NOMINAL IN
ear_quantity8
body_thickness0.685 INCHES NOMINAL IN
flange_thickness0.125 INCHES NOMINAL IN
bolt_circle_diameter16.000 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTIEARS AND HOLES
bolt_circle_hole_quantity8
cross-sectional_shape_styleFLAT, ROUND RIB REINFORCED
NSN5340-01-139-6829
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6531-70-807-1041 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
•
EAR QUANTITY: 8
•
FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 8
•
EAR RADIUS: 1.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLAT, ROUND RIB REINFORCED
•
SECURING DEVICE TYPE: SPECIAL
•
BODY RADIUS: 4.000 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 16.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EAR QUANTITY8
FLANGE THICKNESS0.125 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY8
EAR RADIUS1.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLAT, ROUND RIB REINFORCED
SECURING DEVICE TYPESPECIAL
BODY RADIUS4.000 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER16.000 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, MULTIEARS AND HOLES
MATERIALALUMINUM ALLOY 2024
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
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 6531-70-807-1041?
6531-70-807-1041 is a COVER,ACCESS.
What is the NSN for 6531-70-807-1041?
6531-70-807-1041 is cataloged in the U.S. Government catalog under NSN 5340-01-139-6829. 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.