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494378 — FLOAT CHAMBER,CARBURETOR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

494378: FLOAT CHAMBER,CARBURETOR.

The FLOAT CHAMBER,CARBURETOR is a the manufacturer industrial component. Key specifications include length: 4.125 INCHES NOMINAL IN, style_designator: CYLINDRICAL, end_connection_type: FLANGED FIRST END, element_outside_diameter: 3.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-923-6436, 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
494378
NSN: 4730-00-923-6436
NIINs: 009236436, 014854190
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
length4.125 INCHES NOMINAL IN
style_designatorCYLINDRICAL
end_connection_typeFLANGED FIRST END
element_outside_diameter3.250 INCHES NOMINAL IN
NSN4730-00-923-6436
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 494378 · 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
•
LENGTH: 4.125 INCHES NOMINAL IN
•
END CONNECTION TYPE: FLANGED FIRST END
•
STYLE DESIGNATOR: CYLINDRICAL
•
ELEMENT OUTSIDE DIAMETER: 3.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH4.125 INCHES NOMINAL IN
END CONNECTION TYPEFLANGED FIRST END
STYLE DESIGNATORCYLINDRICAL
ELEMENT OUTSIDE DIAMETER3.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
699146Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 494378?
494378 is a FLOAT CHAMBER,CARBURETOR.
What parts can replace 494378?
There is 1 known substitute for 494378: 699146. Substitute compatibility should be verified for your specific system.
What is the NSN for 494378?
494378 is cataloged in the U.S. Government catalog under NSN 4730-00-923-6436. 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.