4-4 FBU — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

4-4 FBU: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES SECOND END, thread_class: 2A SECOND END A, connection_type: THREADED EXTERNAL TUBE SECOND END, connection_style: FLARELESS (TUBE) SECOND END, style_designator: FLARELESS W/ CENTER WRENCHING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-595-0909, 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

4-4 FBU

NSN: 4730-01-595-0909
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 18565 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CHOMERICS DIVISION (USA)

SPECIFICATIONS

material	STEEL OVERALL
seat_angle	37.0 DEGREES SECOND END
thread_class	2A SECOND END A
connection_type	THREADED EXTERNAL TUBE SECOND END
connection_style	FLARELESS (TUBE) SECOND END
style_designator	FLARELESS W/ CENTER WRENCHING FACILITY
nominal_thread_size	0.25 INCHES FIRST END IN
nominal_outside_diameter	0.4375 INCHES SECOND END IN
thread_quantity_per_inch	18 FIRST END
thread_series_designator	UNF SECOND END
part_name_assigned_by_controlling_agency	MALE CONNECTOR
NSN	4730-01-595-0909

COMPONENT DIAGRAM

KEY FEATURES

•

CONNECTION STYLE: PLAIN (TUBE) FIRST END

•

CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END

•

STYLE DESIGNATOR: FLARELESS W/ CENTER WRENCHING FACILITY

•

NOMINAL THREAD SIZE: 0.4375 INCHES SECOND END IN

•

SEAT ANGLE: 37.0 DEGREES SECOND END

TECHNICAL CHARACTERISTICS

CONNECTION STYLE	PLAIN (TUBE) FIRST END
CONNECTION STYLE	FLARELESS (TUBE) SECOND END
CONNECTION TYPE	THREADED EXTERNAL TUBE FIRST END
CONNECTION TYPE	THREADED EXTERNAL TUBE SECOND END
STYLE DESIGNATOR	FLARELESS W/ CENTER WRENCHING FACILITY
NOMINAL THREAD SIZE	0.4375 INCHES SECOND END IN
NOMINAL THREAD SIZE	0.25 INCHES FIRST END IN
SEAT ANGLE	37.0 DEGREES SECOND END
NOMINAL OUTSIDE DIAMETER	0.4375 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER	0.25 INCHES FIRST END IN

OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

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

4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008

SUBSTITUTES & CROSS-REFERENCES 1

SAE J514,4-4 080102Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 4-4 FBU?

4-4 FBU is a ADAPTER,STRAIGHT,TUBE TO BOSS.

What parts can replace 4-4 FBU?

There is 1 known substitute for 4-4 FBU: SAE J514,4-4 080102. Substitute compatibility should be verified for your specific system.

What is the NSN for 4-4 FBU?

4-4 FBU is cataloged in the U.S. Government catalog under NSN 4730-01-595-0909. This indicates validated use in U.S. government and defense supply chains.

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4-4 FBU — ADAPTER,STRAIGHT,TUBE TO BOSS

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