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FC7180-1616-4L1 — ADAPTER,STRAIGHT,HOSE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

FC7180-1616-4L1: ADAPTER,STRAIGHT,HOSE TO BOSS.

The ADAPTER,STRAIGHT,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include thread_class: 3A SECOND END A, connection_type: THREADED EXTERNAL HOSE GRIPPING FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, nominal_thread_size: 2.312 INCHES SECOND END IN, nominal_overall_length: 4.750 INCHES IN, thread_quantity_per_inch: 12 SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-258-8559, 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
FC7180-1616-4L1
NSN: 4730-00-258-8559
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
thread_class3A SECOND END A
connection_typeTHREADED EXTERNAL HOSE GRIPPING FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
nominal_thread_size2.312 INCHES SECOND END IN
nominal_overall_length4.750 INCHES IN
thread_quantity_per_inch12 SECOND END
thread_series_designatorUN SECOND END
nondefinitive_spec/std_dataC TYPE
furnished_items_and_quantity1 HOSE COUPLING NUT
criticality_code_justificationZZZX
departure_from_cited_designatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
material_document_and_classificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-258-8559
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC7180-1616-4L1 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 HOSE COUPLING NUT
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) FIRST END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 1.999 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 3.562 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 4.750 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: ZZZX
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 HOSE COUPLING NUT
CONNECTION STYLEGRIPPING NIPPLE (NOSE) FIRST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED1.999 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED3.562 INCHES FIRST END IN
NOMINAL OVERALL LENGTH4.750 INCHES IN
CRITICALITY CODE JUSTIFICATIONZZZX
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
FC7180-1616-4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MILH24135Reference document
Same NSN cross-reference
Reference document — Identification reference
MILH24135L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FC7180-1616-4L1?
FC7180-1616-4L1 is a ADAPTER,STRAIGHT,HOSE TO BOSS.
What parts can replace FC7180-1616-4L1?
There are 3 known substitutes for FC7180-1616-4L1: FC7180-1616-4, MILH24135, MILH24135L1. Substitute compatibility should be verified for your specific system.
What is the NSN for FC7180-1616-4L1?
FC7180-1616-4L1 is cataloged in the U.S. Government catalog under NSN 4730-00-258-8559. This indicates validated use in U.S. government and defense supply chains.
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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.