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A7568 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CRANKSHAFT ASSEMBLY is a the manufacturer industrial component. Key specifications include bearings: NOT INCLUDED, material: RUBBER, tread_width: 1.375 INCHES NOMINAL IN, overall_width: 1.562 INCHES NOMINAL IN, tread_pattern: SMOOTH TREAD, overall_length: 1.562 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-088-6878, 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
A7568
NSN: 5340-00-088-6878
FSC: 5340
CAGE: 71823 — DARNELL CORPORATION (USA)
SPECIFICATIONS
bearingsNOT INCLUDED
materialRUBBER
tread_width1.375 INCHES NOMINAL IN
overall_width1.562 INCHES NOMINAL IN
tread_patternSMOOTH TREAD
overall_length1.562 INCHES NOMINAL IN
outside_diameter6.000 INCHES NOMINAL IN
special_featuresGAS DIFFERENTIATED BY AXLE RECESS DIA
soft_tread_featureNOT INCLUDED
axle_recess_diameter0.500 INCHES NOMINAL IN
end_item_identificationW/S:AIRCRAFT, F-16; U-2 SUPPORT EQUIPMENT; AIRCRAFT, OV-10A; AIRCRAFT, EAGLE F-15; AIRCRAFT, PHANTOM F-4 A
NSN5340-00-088-6878
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A7568 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: 6.000 INCHES NOMINAL IN
•
TREAD PATTERN: SMOOTH TREAD
•
MATERIAL: RUBBER
•
AXLE RECESS DIAMETER: 0.500 INCHES NOMINAL IN
•
SOFT TREAD FEATURE: NOT INCLUDED
•
TREAD WIDTH: 1.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER6.000 INCHES NOMINAL IN
TREAD PATTERNSMOOTH TREAD
OVERALL WIDTH1.562 INCHES NOMINAL IN
MATERIALRUBBER
SPECIAL FEATURESGAS DIFFERENTIATED BY AXLE RECESS DIA
AXLE RECESS DIAMETER0.500 INCHES NOMINAL IN
SOFT TREAD FEATURENOT INCLUDED
TREAD WIDTH1.375 INCHES NOMINAL IN
BEARINGSNOT INCLUDED
END ITEM IDENTIFICATIONW/S:AIRCRAFT, F-16; U-2 SUPPORT EQUIPMENT; AIRCRAFT, OV-10A; AIRCRAFT, EAGLE F-15; AIRCRAFT, PHANTOM F-4 A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
S3123YR0010Upgraded Successor
successor cross-reference
successor
C6Upgraded Successor
successor cross-reference
successor
10539415Upgraded Successor
successor cross-reference
successor
GPW18288Interchangeable
interchangeable cross-reference
interchangeable
A7568Interchangeable
interchangeable cross-reference
interchangeable
7371582Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A7568?
A7568 is a CRANKSHAFT ASSEMBLY.
What parts can replace A7568?
There are 7 known substitutes for A7568: S3123YR0010, C6, 10539415 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A7568?
A7568 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-088-6878. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026