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2403364 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2403364: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include reducer_type: CONCENTRIC, end_item_identification: A7N MAIN FEED PUMPS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-194-1889, 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
2403364
NSN: 4730-01-194-1889
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
reducer_typeCONCENTRIC
end_item_identificationA7N MAIN FEED PUMPS
NSN4730-01-194-1889
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2403364 · 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
•
REDUCER TYPE: CONCENTRIC
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONA7N MAIN FEED PUMPS
REDUCER TYPECONCENTRIC
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 1
1639466Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2403364?
2403364 is a REDUCER,TUBE.
What parts can replace 2403364?
There is 1 known substitute for 2403364: 1639466. Substitute compatibility should be verified for your specific system.
What is the NSN for 2403364?
2403364 is cataloged in the U.S. Government catalog under NSN 4730-01-194-1889. 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.