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921979 — ORIFICE SPARK ADVANCE CONTROL VA

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

921979: ORIFICE SPARK ADVANCE CONTROL VA.

ORIFICE SPARK ADVANCE CONTROL VA. Key specifications include end_item_identification: PUMP, HYDRAULIC PUMP ASSEMBLY, part_name_assigned_by_controlling_agency: ORIFICE ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 2990-01-574-0821, 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
921979
NSN: 2990-01-574-0821
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
end_item_identificationPUMP, HYDRAULIC PUMP ASSEMBLY
part_name_assigned_by_controlling_agencyORIFICE ASSEMBLY
NSN2990-01-574-0821
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ORIFICE SPARK ADVANCE CONTROL VA TITLE COMPONENT PN 921979 MFR ORIFICE SPARK ADVANCE
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYORIFICE ASSEMBLY
END ITEM IDENTIFICATIONPUMP, HYDRAULIC PUMP ASSEMBLY
OTHER ITEMS IN FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2990-00-096-8607 2990-00-390-3445 2990-00-459-7255 2990-00-536-2962 2990-00-903-8226 2990-01-151-5443
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 921979?
921979 is a ORIFICE SPARK ADVANCE CONTROL VA.
What is the NSN for 921979?
921979 is cataloged in the U.S. Government catalog under NSN 2990-01-574-0821. 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.