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AS1037A — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS1037A: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A FIRST END BULKHEAD A, connection_style: FLARED (TUBE) FIRST END, surface_treatment: PASSIVATE OUTSIDE, nominal_thread_size: 1.312 INCHES SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-104-8749, 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
AS1037A
NSN: 4730-00-104-8749
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class3A FIRST END BULKHEAD A
connection_styleFLARED (TUBE) FIRST END
surface_treatmentPASSIVATE OUTSIDE
nominal_thread_size1.312 INCHES SECOND END IN
nominal_overall_length2.579 INCHES IN
end_item_identificationAIRCRAFT APPLICATION
thread_quantity_per_inch12 SECOND END
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) SECOND END
specification/standard_data81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-00-104-8749
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1037A · 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
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 2.579 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END BULKHEAD IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL OVERALL LENGTH2.579 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END BULKHEAD IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
NOMINAL THREAD SIZE1.312 INCHES SECOND END IN
SEAT ANGLE37.0 DEGREES FIRST END
SPECIFICATION/STANDARD DATA81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTPASSIVATE OUTSIDE
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 6
AS1037J0816Reference document
Same NSN cross-reference
Reference document — Secondary reference
PA832J0816Reference document
Same NSN cross-reference
Reference document — Secondary reference
0C0832J0816Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS4841Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
DC0832J0816Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 AS1037A?
AS1037A is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS1037A?
There are 6 known substitutes for AS1037A: AS1037J0816, PA832J0816, 0C0832J0816 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1037A?
AS1037A is cataloged in the U.S. Government catalog under NSN 4730-00-104-8749. 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.