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AS3220 ✓ 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 SLEEVE,FLARED,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, flange_width: 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, overall_length: 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN, style_designator: SLEEVE, seat_angle_in_deg: 33.0, surface_treatment: ANODIZE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-618-8594, 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
AS3220
NSN: 4730-00-618-8594
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
flange_width0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
overall_length0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
style_designatorSLEEVE
seat_angle_in_deg33.0
surface_treatmentANODIZE
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter1.407 INCHES MINIMUM AND 1.417 INCHES MAXIMUM IN
sleeve_outside_diameter0.110 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
specification/standard_data81343-AS3220 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
hose/tube_outside_diameter_for_which_designed1.250 INCHES NOMINAL IN
NSN4730-00-618-8594
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS3220 · 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
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.500 INCHES NOMINAL IN
•
SLEEVE OUTSIDE DIAMETER: 2.659 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.469 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 33.0
•
FLANGE OUTSIDE DIAMETER: 2.911 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SLEEVE
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.500 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER2.659 INCHES NOMINAL IN
FLANGE WIDTH0.469 INCHES NOMINAL IN
SEAT ANGLE IN DEG33.0
FLANGE OUTSIDE DIAMETER2.911 INCHES NOMINAL IN
STYLE DESIGNATORSLEEVE
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY
CASEHARDENING INDICATORNOT CASEHARDENED
OVERALL LENGTH1.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
ST7M411-12WInterchangeable
interchangeable cross-reference
interchangeable
ST7M411Interchangeable
interchangeable cross-reference
interchangeable
AN819-12ZInterchangeable
interchangeable cross-reference
interchangeable
AS3220-W32Interchangeable
interchangeable cross-reference
interchangeable
AS3220Interchangeable
interchangeable cross-reference
interchangeable
AS4841Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3220?
AS3220 is a SLEEVE,FLARED,TUBE FITTING.
What parts can replace AS3220?
There are 20 known substitutes for AS3220: ST7M411-12W, ST7M411, AN819-12Z and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3220?
AS3220 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-618-8594. 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