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AS5174W0603V — REDUCER,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS5174W0603V: REDUCER,BOSS.

The REDUCER,BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, thread_class: 3A OVERALL A, connection_type: THREADED EXTERNAL BOSS OVERALL, connection_style: FLARED W/ GASKET SEAL (BOSS) OVERALL, style_designator: FLARED W/ CENTER WRENCHING FACILITY, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-733-0791, 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
AS5174W0603V
NSN: 4730-01-733-0791
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
thread_class3A OVERALL A
connection_typeTHREADED EXTERNAL BOSS OVERALL
connection_styleFLARED W/ GASKET SEAL (BOSS) OVERALL
style_designatorFLARED W/ CENTER WRENCHING FACILITY
surface_treatmentANODIZE OVERALL
nominal_thread_size0.5625 INCHES FIRST END IN
nominal_overall_length1.328 INCHES IN
end_item_identificationEA-18G G
thread_quantity_per_inch18 FIRST END
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classificationAMS-QQ-A-225/9 NATIONAL STD SINGLE MATERIAL RESPONSE OR AMS4124 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-733-0791
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS5174W0603V · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS2472 NATIONAL STD SINGLE TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) OVERALL
•
NOMINAL OVERALL LENGTH: 1.328 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS OVERALL
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS-QQ-A-225/9 NATIONAL STD SINGLE MATERIAL RESPONSE OR AMS4124 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.3750 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS2472 NATIONAL STD SINGLE TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) OVERALL
NOMINAL OVERALL LENGTH1.328 INCHES IN
CONNECTION TYPETHREADED EXTERNAL BOSS OVERALL
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-QQ-A-225/9 NATIONAL STD SINGLE MATERIAL RESPONSE OR AMS4124 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.3750 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES SECOND END IN
NOMINAL THREAD SIZE0.3750 INCHES SECOND END IN
NOMINAL THREAD SIZE0.5625 INCHES FIRST END IN
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 1
AS5174Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 AS5174W0603V?
AS5174W0603V is a REDUCER,BOSS.
What parts can replace AS5174W0603V?
There is 1 known substitute for AS5174W0603V: AS5174. Substitute compatibility should be verified for your specific system.
What is the NSN for AS5174W0603V?
AS5174W0603V is cataloged in the U.S. Government catalog under NSN 4730-01-733-0791. 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.