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Technical Data Sheet
PartsTable / COMPONENT / AN-3.0-3521/2M-E ITEM 3
AN-3.0-3521/2M-E ITEM 3 ✓ 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 AN-3.0-3521/2M-E ITEM 3 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-151-3949, 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
AN-3.0-3521/2M-E ITEM 3
NSN: 4730-01-151-3949
FSC: 4730
CAGE: 76588 — CORE INDUSTRIES INC. DBA MUELLER STEAM SPECIALTY (USA)
SPECIFICATIONS
Part NumberAN-3.0-3521/2M-E ITEM 3
NSN4730-01-151-3949
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN-3.0-3521/2M-E ITEM 3 · 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
•
PERFORATION QUANTITY: 144.0 PER SQUARE INCH
•
PERFORATION DIAMETER: 0.057 INCHES NOMINAL IN
•
FILTERING MEDIA DESIGN: PERFORATED
•
END CONNECTION TYPE: PLAIN FIRST END
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
PERFORATION QUANTITY144.0 PER SQUARE INCH
PERFORATION DIAMETER0.057 INCHES NOMINAL IN
FILTERING MEDIA DESIGNPERFORATED
END CONNECTION TYPEPLAIN FIRST END
STYLE DESIGNATORCYLINDRICAL
MATERIALNICKEL ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
HSA000583Interchangeable
interchangeable cross-reference
interchangeable
LFP4005Interchangeable
interchangeable cross-reference
interchangeable
1792Interchangeable
interchangeable cross-reference
interchangeable
51792Interchangeable
interchangeable cross-reference
interchangeable
SR2-5K25NInterchangeable
interchangeable cross-reference
interchangeable
SR2-5XK25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN-3.0-3521/2M-E ITEM 3?
AN-3.0-3521/2M-E ITEM 3 is a AN-3.0-3521/2M-E ITEM 3.
What parts can replace AN-3.0-3521/2M-E ITEM 3?
There are 11 known substitutes for AN-3.0-3521/2M-E ITEM 3: HSA000583, LFP4005, 1792 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN-3.0-3521/2M-E ITEM 3?
AN-3.0-3521/2M-E ITEM 3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-151-3949. 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