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AS1037W0404 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS1037W0404: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, connection_type: THREADED INTERNAL TUBE ALL ENDS, surface_treatment: ANODIZE OVERALL, nominal_thread_size: 0.438 INCHES ALL ENDS IN, nominal_overall_length: 1.753 INCHES IN, thread_quantity_per_inch: 20 ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-625-2576, 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
AS1037W0404
NSN: 4730-01-625-2576
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
connection_typeTHREADED INTERNAL TUBE ALL ENDS
surface_treatmentANODIZE OVERALL
nominal_thread_size0.438 INCHES ALL ENDS IN
nominal_overall_length1.753 INCHES IN
thread_quantity_per_inch20 ALL ENDS
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
part_name_assigned_by_controlling_agencyFITTING, UNION, STANDARD AND REDUCER, BULKHEAD, FLARED
nominal_outside_diameter_tube_accommodated0.250 INCHES ALL ENDS IN
NSN4730-01-625-2576
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1037W0404 · 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
•
NOMINAL OVERALL LENGTH: 1.753 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
THREAD QUANTITY PER INCH: 20 ALL ENDS
•
MATERIAL: ALUMINUM ALLOY 7075 OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH1.753 INCHES IN
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SURFACE TREATMENTANODIZE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYFITTING, UNION, STANDARD AND REDUCER, BULKHEAD, FLARED
THREAD QUANTITY PER INCH20 ALL ENDS
MATERIALALUMINUM ALLOY 7075 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 2
SAE-AS4841Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS1037Reference 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 AS1037W0404?
AS1037W0404 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS1037W0404?
There are 2 known substitutes for AS1037W0404: SAE-AS4841, AS1037. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1037W0404?
AS1037W0404 is cataloged in the U.S. Government catalog under NSN 4730-01-625-2576. 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.