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W701L120G56 — COUPLING ASSEMBLY,TUBE,FLEXIBLE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

W701L120G56: COUPLING ASSEMBLY,TUBE,FLEXIBLE.

COUPLING ASSEMBLY,TUBE,FLEXIBLE. Key specifications include material: ALUMINUM ALLOY 356.0, overall_length: 2.862 INCHES MAXIMUM IN, outside_diameter: 4.390 INCHES MAXIMUM IN, special_features: BOSS ON BODY PER MS33649-6, style_designator: FLEXIBLE COUPLING ASSEMBLY, working_pressure_and_service_type: 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL JET FUEL LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-056-9955, 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
W701L120G56
NSN: 4730-01-056-9955
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79326 — TRANSDIGM INC DIV ADELWIGGINS GROUP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 356.0
overall_length2.862 INCHES MAXIMUM IN
outside_diameter4.390 INCHES MAXIMUM IN
special_featuresBOSS ON BODY PER MS33649-6
style_designatorFLEXIBLE COUPLING ASSEMBLY
working_pressure_and_service_type125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL JET FUEL LBS
tube_outside_diameter_for_which_designed3.500 INCHES NOMINAL IN
NSN4730-01-056-9955
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: W701L120G56 · 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
KEY FEATURES
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 3.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLEXIBLE COUPLING ASSEMBLY
•
OUTSIDE DIAMETER: 4.390 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 356.0
•
WORKING PRESSURE AND SERVICE TYPE: 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL JET FUEL LBS
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED3.500 INCHES NOMINAL IN
STYLE DESIGNATORFLEXIBLE COUPLING ASSEMBLY
OVERALL LENGTH2.862 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.390 INCHES MAXIMUM IN
SPECIAL FEATURESBOSS ON BODY PER MS33649-6
MATERIALALUMINUM ALLOY 356.0
WORKING PRESSURE AND SERVICE TYPE125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL JET FUEL LBS
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W701L120G56?
W701L120G56 is a COUPLING ASSEMBLY,TUBE,FLEXIBLE.
What is the NSN for W701L120G56?
W701L120G56 is cataloged in the U.S. Government catalog under NSN 4730-01-056-9955. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.