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Technical Data Sheet
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9J7978 — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

9J7978: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include end_item_identification: 2410-01-565-2603 TRACTOR, FULL TRACKED, LOW SPEED, part_name_assigned_by_controlling_agency: RING, WEARING. This part is cataloged in the U.S.

Government catalog under NSN 4320-01-579-4384, 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
9J7978
NSN: 4320-01-579-4384
FSC: 4320 — Power and Hand Pumps
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
end_item_identification2410-01-565-2603 TRACTOR, FULL TRACKED, LOW SPEED
part_name_assigned_by_controlling_agencyRING, WEARING
NSN4320-01-579-4384
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN 9J7978 MFR RING,WEARING
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYRING, WEARING
END ITEM IDENTIFICATION2410-01-565-2603 TRACTOR, FULL TRACKED, LOW SPEED
OTHER ITEMS IN FSC 4320 — Power and Hand Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4320-00-001-1633 4320-00-001-2628 4320-00-001-2629 4320-00-001-2630 4320-00-001-2631 4320-00-001-2632 4320-00-001-3377 4320-00-001-3384
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9J7978?
9J7978 is a RING,WEARING.
What is the NSN for 9J7978?
9J7978 is cataloged in the U.S. Government catalog under NSN 4320-01-579-4384. 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.