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6866022 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6866022: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include hole_diameter: 0.279 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN, bolt_circle_diameter: 4.500 INCHES NOMINAL IN, fsc_application_data: ACFT JET ENGINE, peripheral_shape_style: ROUND, MULTI HOLES, mounting_opening_shape_style: THREADED HOLE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-004-2721, 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
6866022
NSN: 5340-01-004-2721
FSC: 5340 — Hardware, Commercial
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
hole_diameter0.279 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
bolt_circle_diameter4.500 INCHES NOMINAL IN
fsc_application_dataACFT JET ENGINE
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity6
mounting_opening_shape_styleTHREADED HOLE
NSN5340-01-004-2721
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6866022 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
•
FSC APPLICATION DATA: ACFT JET ENGINE
•
BOLT CIRCLE HOLE QUANTITY: 6
•
MOUNTING OPENING SHAPE STYLE: THREADED HOLE
•
BOLT CIRCLE DIAMETER: 4.500 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
•
HOLE DIAMETER: 0.279 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAACFT JET ENGINE
BOLT CIRCLE HOLE QUANTITY6
MOUNTING OPENING SHAPE STYLETHREADED HOLE
BOLT CIRCLE DIAMETER4.500 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
HOLE DIAMETER0.279 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
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 6866022?
6866022 is a COVER,ACCESS.
What is the NSN for 6866022?
6866022 is cataloged in the U.S. Government catalog under NSN 5340-01-004-2721. 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.