222894R2 — GUIDE,ENGINE POPPET VALVE TAPPET

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

222894R2: GUIDE,ENGINE POPPET VALVE TAPPET.

GUIDE,ENGINE POPPET VALVE TAPPET. Key specifications include material: ALUMINUM ALLOY 2017, thread_size: 1.375-20, overall_length: 4.736 INCHES NOMINAL IN, thread_provision: THREADED, end_item_identification: R2800 ACFT ENG, screw_thread_series_designator: UNS. This part is cataloged in the U.S.

Government catalog under NSN 2810-00-331-6493, 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

222894R2

NSN: 2810-00-331-6493
FSC: 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2017
thread_size	1.375-20
overall_length	4.736 INCHES NOMINAL IN
thread_provision	THREADED
end_item_identification	R2800 ACFT ENG
screw_thread_series_designator	UNS
NSN	2810-00-331-6493

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD PROVISION: THREADED

•

THREAD SIZE: 1.375-20

•

SCREW THREAD SERIES DESIGNATOR: UNS

•

MATERIAL: ALUMINUM ALLOY 2017

TECHNICAL CHARACTERISTICS

THREAD PROVISION	THREADED
OVERALL LENGTH	4.736 INCHES NOMINAL IN
THREAD SIZE	1.375-20
SPECIAL FEATURES	MAIN BODY OD VARIES FM 1.140 IN. MIN & 1.141 IN. MAX TO 1.146 IN. MIN &1.147 IN. MAX; FIRST END 1.052 IN. MIN & 1.072 IN. MAX OD BY 0.666 IN. LG; SECOND END EXTERNALLY THD 0.96 IN. MIN & 0.98 IN. MAX LG; FOR FRONT EXHAUST VALVE TAPPET IN
SCREW THREAD SERIES DESIGNATOR	UNS
END ITEM IDENTIFICATION	R2800 ACFT ENG
MATERIAL	ALUMINUM ALLOY 2017

OTHER ITEMS IN FSC 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2810-00-001-3863 2810-00-001-9036 2810-00-001-9113 2810-00-001-9116 2810-00-001-9117 2810-00-001-9592 2810-00-003-5864 2810-00-004-0436

SUBSTITUTES & CROSS-REFERENCES 1

222894R002Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 222894R2?

222894R2 is a GUIDE,ENGINE POPPET VALVE TAPPET.

What parts can replace 222894R2?

There is 1 known substitute for 222894R2: 222894R002. Substitute compatibility should be verified for your specific system.

What is the NSN for 222894R2?

222894R2 is cataloged in the U.S. Government catalog under NSN 2810-00-331-6493. This indicates validated use in U.S. government and defense supply chains.

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222894R2 — GUIDE,ENGINE POPPET VALVE TAPPET

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