CVC4257J4 — INJECTOR ASSEMBLY,FUEL

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

CVC4257J4: INJECTOR ASSEMBLY,FUEL.

The INJECTOR ASSEMBLY,FUEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.720 INCHES NOMINAL IN, seat_angle: 45.00 DEGREES NOMINAL, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 4730-00-919-4651, 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

CVC4257J4

NSN: 4730-00-919-4651
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80378 — TRIUMPH AEROSTRUCTURES, LLC DBA TRIUMPH AEROSTRUCTURES - VOUGHT INTEGRATED PROGRAMS DIVISION (USA)

SPECIFICATIONS

material	STEEL COMP 304 OVERALL
nut_style	TUBE COUPLING
nut_height	0.720 INCHES NOMINAL IN
seat_angle	45.00 DEGREES NOMINAL
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
fabrication_method	MACHINED
length_to_shoulder	0.547 INCHES NOMINAL IN
width_across_flats	0.562 INCHES NOMINAL IN
nominal_thread_size	0.438 INCHES IN
NSN	4730-00-919-4651

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH TO SHOULDER: 0.547 INCHES NOMINAL IN

•

WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

SEAT ANGLE: 45.00 DEGREES NOMINAL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.438 INCHES IN

TECHNICAL CHARACTERISTICS

LENGTH TO SHOULDER	0.547 INCHES NOMINAL IN
WIDTH ACROSS FLATS	0.562 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763,CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE	45.00 DEGREES NOMINAL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.438 INCHES IN
SPECIFICATION/STANDARD DATA	96906-MS21921 GOVERNMENT STANDARD
NUT HEIGHT	0.720 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 5

MS21921-4JReference document

Same NSN cross-reference

Reference document — Secondary reference

4781013-0004Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

4730009194651Reference document

Same NSN cross-reference

Reference document — Secondary reference

202-21600C4Reference document

Same NSN cross-reference

Reference document — Secondary reference

MIL-F-18280Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is CVC4257J4?

CVC4257J4 is a INJECTOR ASSEMBLY,FUEL.

What parts can replace CVC4257J4?

There are 5 known substitutes for CVC4257J4: MS21921-4J, 4781013-0004, 4730009194651 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for CVC4257J4?

CVC4257J4 is cataloged in the U.S. Government catalog under NSN 4730-00-919-4651. This indicates validated use in U.S. government and defense supply chains.

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CVC4257J4 — INJECTOR ASSEMBLY,FUEL

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