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Technical Data Sheet
PartsTable / COMPONENT / 434-4-4B
434-4-4B ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END, nominal_thread_size: 0.500 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-555-1152, 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
434-4-4B
NSN: 4730-00-555-1152
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle45.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
nominal_thread_size0.500 INCHES FIRST END IN
nominal_overall_length1.562 INCHES IN
end_item_identification600,000 GAL CAP (3ID) AMPHIBIOUS ASSULT FUEL SYSTEM. TACT AIRFIELD (3ID) (M1966) FUEL DISPENSING SYSTEM.
thread_series_designatorUNF FIRST END
nominal_inside_diameter_hose_accommodated0.250 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated0.562 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.312 INCHES FIRST END IN
NSN4730-00-555-1152
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 434-4-4B · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
308A63Interchangeable
interchangeable cross-reference
interchangeable
308-63Interchangeable
interchangeable cross-reference
interchangeable
10250H2540Interchangeable
interchangeable cross-reference
interchangeable
949356-1Interchangeable
interchangeable cross-reference
interchangeable
B949356-1Interchangeable
interchangeable cross-reference
interchangeable
41320-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 434-4-4B?
434-4-4B is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 434-4-4B?
There are 27 known substitutes for 434-4-4B: 308A63, 308-63, 10250H2540 and 24 more. Substitute compatibility should be verified for your specific system.
Is 434-4-4B still available?
434-4-4B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026