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221591 — LINER,ACCESSORY GEAR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

221591: LINER,ACCESSORY GEAR.

The LINER,ACCESSORY GEAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 2.500 INCHES NOMINAL IN, special_features: COGNIZANT USER SERVICE ROYAL AUSTRALIAN NAVY, end_item_identification: SEA HAWK HELICOPTER MODEL S70B-2, stem_actuating_end_type: SLOTTED, valve_size_for_which_designed: 0.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 2840-00-213-2173, 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
221591
NSN: 2840-00-213-2173
NIINs: 002132173, 013734214, 013794982
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_length2.500 INCHES NOMINAL IN
special_featuresCOGNIZANT USER SERVICE ROYAL AUSTRALIAN NAVY
end_item_identificationSEA HAWK HELICOPTER MODEL S70B-2
stem_actuating_end_typeSLOTTED
valve_size_for_which_designed0.250 INCHES IN
NSN2840-00-213-2173
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LINER,ACCESSORY GEAR TITLE COMPONENT PN 221591 MFR LINER,ACCESSORY GEAR
KEY FEATURES
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CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONAGAV
END ITEM IDENTIFICATIONACFT ENG J65
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 221591?
221591 is a LINER,ACCESSORY GEAR.
What is the NSN for 221591?
221591 is cataloged in the U.S. Government catalog under NSN 2840-00-213-2173. 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.