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AS1031GJ040403 — TEE,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS1031GJ040403: TEE,TUBE TO BOSS.

The TEE,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, nominal_thickness: 0.100 INCHES CENTER BULKHEAD IN, nominal_thread_size: 0.3750 INCHES ALL ENDS IN, thread_quantity_per_inch: 24 ALL ENDS, thread_series_designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS, nominal_width_across_flats: 0.547 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-727-9046, 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
AS1031GJ040403
NSN: 4730-01-727-9046
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
nominal_thickness0.100 INCHES CENTER BULKHEAD IN
nominal_thread_size0.3750 INCHES ALL ENDS IN
thread_quantity_per_inch24 ALL ENDS
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
nominal_width_across_flats0.547 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencyFITTING,TEE,STANDARD AND REDUCER
NSN4730-01-727-9046
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1031GJ040403 · 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 WIDTH ACROSS FLATS: 0.547 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.3750 INCHES ALL ENDS IN
•
THREAD QUANTITY PER INCH: 24 ALL ENDS
•
MATERIAL: STEEL CORROSION RESISTING BODY
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
•
NOMINAL THICKNESS: 0.100 INCHES CENTER BULKHEAD IN
TECHNICAL CHARACTERISTICS
NOMINAL WIDTH ACROSS FLATS0.547 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.3750 INCHES ALL ENDS IN
PART NAME ASSIGNED BY CONTROLLING AGENCYFITTING,TEE,STANDARD AND REDUCER
THREAD QUANTITY PER INCH24 ALL ENDS
MATERIALSTEEL CORROSION RESISTING BODY
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
NOMINAL THICKNESS0.100 INCHES CENTER BULKHEAD 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
SAE-AS4875/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS1031GJ040403?
AS1031GJ040403 is a TEE,TUBE TO BOSS.
What parts can replace AS1031GJ040403?
There is 1 known substitute for AS1031GJ040403: SAE-AS4875/1. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1031GJ040403?
AS1031GJ040403 is cataloged in the U.S. Government catalog under NSN 4730-01-727-9046. 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.