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AS1737D32 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The FERRULE,SWAGE,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, overall_length: 0.670 INCHES NOMINAL IN, style_designator: CYLINDRICAL, end_item_identification: KC-46A AIRCRAFT A, sleeve_outside_diameter: 2.274 INCHES MINIMUM AND 2.279 INCHES MAXIMUM IN, hose/tube_outside_diameter_for_which_designed: 2.0 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-287-1088, 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
AS1737D32
NSN: 4730-01-287-1088
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_length0.670 INCHES NOMINAL IN
style_designatorCYLINDRICAL
end_item_identificationKC-46A AIRCRAFT A
sleeve_outside_diameter2.274 INCHES MINIMUM AND 2.279 INCHES MAXIMUM IN
hose/tube_outside_diameter_for_which_designed2.0 INCHES NOMINAL IN
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN4730-01-287-1088
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1737D32 · 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
•
SLOT WIDTH: 0.380 INCHES NOMINAL IN
•
SLOT QUANTITY: 11
•
FLANGE INSIDE DIAMETER: 1.981 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE FLANGE
•
FLANGE WIDTH: 0.090 INCHES NOMINAL IN
•
SLEEVE OUTSIDE DIAMETER: 2.285 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.670 INCHES NOMINAL IN
SLOT WIDTH0.380 INCHES NOMINAL IN
SPECIAL FEATURESFLANGE END 4 HOLES DRILLED 0.052 IN. IN
SLOT QUANTITY11
FLANGE INSIDE DIAMETER1.981 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE FLANGE
FLANGE WIDTH0.090 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER2.285 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.000 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER2.274 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
AS1738-1D12Interchangeable
interchangeable cross-reference
interchangeable
TC039-12AInterchangeable
interchangeable cross-reference
interchangeable
C925-3A12Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS1730Interchangeable
interchangeable cross-reference
interchangeable
AS1730Interchangeable
interchangeable cross-reference
interchangeable
AS1732Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS1737D32?
AS1737D32 is a FERRULE,SWAGE,TUBE COUPLING.
What parts can replace AS1737D32?
There are 21 known substitutes for AS1737D32: AS1738-1D12, TC039-12A, C925-3A12 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1737D32?
AS1737D32 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-287-1088. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026