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PartsTable / COMPONENT / AS1737D20
AS1737D20 ✓ 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 2014 OR ALUMINUM ALLOY 2024, slot_depth: 0.008 INCHES NOMINAL IN, slot_width: 0.035 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN, flange_width: 0.060 INCHES NOMINAL IN, overall_length: 0.585 INCHES NOMINAL IN, style_designator: SINGLE FLANGE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-283-5134, 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
AS1737D20
NSN: 4730-01-283-5134
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024
slot_depth0.008 INCHES NOMINAL IN
slot_width0.035 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
flange_width0.060 INCHES NOMINAL IN
slot_quantity5
overall_length0.585 INCHES NOMINAL IN
style_designatorSINGLE FLANGE
flange_inside_diameter1.230 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter1.513 INCHES NOMINAL IN
sleeve_outside_diameter1.392 INCHES NOMINAL IN
nondefinitive_spec/std_data20 SIZE
NSN4730-01-283-5134
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1737D20 · 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
•
FLANGE INSIDE DIAMETER: 1.230 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024
•
STYLE DESIGNATOR: SINGLE FLANGE
•
NONDEFINITIVE SPEC/STD DATA: 20 SIZE
•
SPECIFICATION/STANDARD DATA: 81343-AS1737 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SLEEVE OUTSIDE DIAMETER: 1.392 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE INSIDE DIAMETER1.230 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024
STYLE DESIGNATORSINGLE FLANGE
NONDEFINITIVE SPEC/STD DATA20 SIZE
SPECIFICATION/STANDARD DATA81343-AS1737 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SLEEVE OUTSIDE DIAMETER1.392 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.250 INCHES NOMINAL IN
SLOT DEPTH0.008 INCHES NOMINAL IN
OVERALL LENGTH0.585 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
W83052-24Interchangeable
interchangeable cross-reference
interchangeable
AS1737D24Interchangeable
interchangeable cross-reference
interchangeable
AS1730Interchangeable
interchangeable cross-reference
interchangeable
T6038-32AEInterchangeable
interchangeable cross-reference
interchangeable
TC038-32AEInterchangeable
interchangeable cross-reference
interchangeable
AS1737Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS1737D20?
AS1737D20 is a FERRULE,SWAGE,TUBE COUPLING.
What parts can replace AS1737D20?
There are 10 known substitutes for AS1737D20: W83052-24, AS1737D24, AS1730 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1737D20?
AS1737D20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-283-5134. 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