666789 — SEAL,TURBINE ENGINE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

666789: SEAL,TURBINE ENGINE.

The SEAL,TURBINE ENGINE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: GRAPHITIC CARBON,4.538 IN. IK,5.276 IN.

OD,0.391 IN. THK,USED ON TF30 ENGINE IN. This part is cataloged in the U.S.

Government catalog under NSN 2840-01-021-5570, 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

666789

NSN: 2840-01-021-5570
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
CAGE: 52661 — RTX CORPORATION DIV PRATT & WHITNEY (USA)

SPECIFICATIONS

general_characteristics_item_description	GRAPHITIC CARBON,4.538 IN. IK,5.276 IN. OD,0.391 IN. THK,USED ON TF30 ENGINE IN
NSN	2840-01-021-5570

COMPONENT DIAGRAM

KEY FEATURES

•

GENERAL CHARACTERISTICS ITEM DESCRIPTION: GRAPHITIC CARBON,4.538 IN. IK,5.276 IN. OD,0.391 IN. THK,USED ON TF30 ENGINE IN

TECHNICAL CHARACTERISTICS

GENERAL CHARACTERISTICS ITEM DESCRIPTION

GRAPHITIC CARBON,4.538 IN. IK,5.276 IN. OD,0.391 IN. THK,USED ON TF30 ENGINE IN

SUBSTITUTES & CROSS-REFERENCES 2

666790Reference document

Same NSN cross-reference

Reference document — Secondary reference

525487Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 666789?

666789 is a SEAL,TURBINE ENGINE.

What parts can replace 666789?

There are 2 known substitutes for 666789: 666790, 525487. Substitute compatibility should be verified for your specific system.

What is the NSN for 666789?

666789 is cataloged in the U.S. Government catalog under NSN 2840-01-021-5570. This indicates validated use in U.S. government and defense supply chains.

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