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AS1040W0303 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS1040W0303: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY ELBOW, connection_type: THREADED EXTERNAL TUBE SECOND END, connection_style: FLARED (TUBE) ALL ENDS, style_designator: ELBOW, surface_treatment: ANODIZE ELBOW, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-685-4551, 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
AS1040W0303
NSN: 4730-01-685-4551
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY ELBOW
connection_typeTHREADED EXTERNAL TUBE SECOND END
connection_styleFLARED (TUBE) ALL ENDS
style_designatorELBOW
surface_treatmentANODIZE ELBOW
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
thread_quantity_per_inch24 ALL ENDS
material_document_and_classificationAMS4142 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS-QQ-A-367 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE ELBOW
nominal_outside_diameter_tube_accommodated0.188 INCHES ALL ENDS IN
surface_treatment_document_and_classificationAMS2472 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TY II, CL 2 MIL SPEC SINGLE TREATMENT RESPONSE ELBOW
NSN4730-01-685-4551
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1040W0303 · 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/SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TY II, CL 2 MIL SPEC SINGLE TREATMENT RESPONSE ELBOW
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END BULKHEAD
•
STYLE DESIGNATOR: ELBOW
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4142 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS-QQ-A-367 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE ELBOW
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS2472 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TY II, CL 2 MIL SPEC SINGLE TREATMENT RESPONSE ELBOW
CONNECTION STYLEFLARED (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END BULKHEAD
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
STYLE DESIGNATORELBOW
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4142 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS-QQ-A-367 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE ELBOW
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SURFACE TREATMENTANODIZE ELBOW
THREAD QUANTITY PER INCH24 ALL ENDS
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 2
AS1040Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS4841Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 AS1040W0303?
AS1040W0303 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS1040W0303?
There are 2 known substitutes for AS1040W0303: AS1040, SAE-AS4841. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1040W0303?
AS1040W0303 is cataloged in the U.S. Government catalog under NSN 4730-01-685-4551. 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.