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55180-103 — COUPLING ASSEMBLY,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

55180-103: COUPLING ASSEMBLY,HOSE.

The COUPLING ASSEMBLY,HOSE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, connection_type: FLANGE FIRST END, operating_pressure: 90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 128.0 FAHRENHEIT SINGLE RESPONSE DEGF, end_item_identification: F-18A AIRCRAFT MODEL CODE A. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-561-6846, 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
55180-103
NSN: 4730-01-561-6846
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 24984 — HYDRAFLOW (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
connection_typeFLANGE FIRST END
operating_pressure90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp128.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationF-18A AIRCRAFT MODEL CODE A
NSN4730-01-561-6846
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 55180-103 · 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
•
CONNECTION TYPE: THREADED EXTERNAL HOSE SECOND END
•
OPERATING PRESSURE: 90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 128.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED EXTERNAL HOSE SECOND END
CONNECTION TYPEFLANGE FIRST END
OPERATING PRESSURE90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP128.0 FAHRENHEIT SINGLE RESPONSE DEGF
END ITEM IDENTIFICATIONF-18A AIRCRAFT MODEL CODE A
MATERIALALUMINUM ALLOY OVERALL
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55180-103?
55180-103 is a COUPLING ASSEMBLY,HOSE.
What is the NSN for 55180-103?
55180-103 is cataloged in the U.S. Government catalog under NSN 4730-01-561-6846. 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.