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PartsTable / COMPONENT / 6-2 120203BA
6-2 120203BA ✓ 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

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include shape: CYLINDRICAL, material: ALUMINUM, fuel_type: AVIATION FUEL, body_shape: RECTANGULAR, body_style: STRAIGHT SHAPE, body_width: 1.156 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-4052, 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
6-2 120203BA
NSN: 4730-00-289-4052
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
shapeCYLINDRICAL
materialALUMINUM
fuel_typeAVIATION FUEL
body_shapeRECTANGULAR
body_styleSTRAIGHT SHAPE
body_width1.156 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
body_height2.940 INCHES NOMINAL IN
body_length1.656 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN
plate_styleRECTANGULAR
body_materialMETAL
bore_diameter75.00 MILLIMETERS NOMINAL MM
NSN4730-00-289-4052
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6-2 120203BA · 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
128SCSEA751-3Interchangeable
interchangeable cross-reference
interchangeable
6415Interchangeable
interchangeable cross-reference
interchangeable
GW18Interchangeable
interchangeable cross-reference
interchangeable
11-98Interchangeable
interchangeable cross-reference
interchangeable
11-3-18Interchangeable
interchangeable cross-reference
interchangeable
519640-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6-2 120203BA?
6-2 120203BA is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 6-2 120203BA?
There are 27 known substitutes for 6-2 120203BA: 128SCSEA751-3, 6415, GW18 and 24 more. Substitute compatibility should be verified for your specific system.
Is 6-2 120203BA still available?
6-2 120203BA 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