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4L6783 — PLUG,FUEL PUMP HOUS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4L6783: PLUG,FUEL PUMP HOUS.

The PLUG,FUEL PUMP HOUS is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: PLASTIC,2-1/2 IN. DIA BY 4.000 IN.

LG IN. This part is cataloged in the U.S. Government catalog under NSN 4730-00-470-7124, 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
4L6783
NSN: 4730-00-470-7124
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionPLASTIC,2-1/2 IN. DIA BY 4.000 IN. LG IN
NSN4730-00-470-7124
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4L6783 · 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
SUBSTITUTES & CROSS-REFERENCES 1
4126783Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 4L6783?
4L6783 is a PLUG,FUEL PUMP HOUS.
What parts can replace 4L6783?
There is 1 known substitute for 4L6783: 4126783. Substitute compatibility should be verified for your specific system.
What is the NSN for 4L6783?
4L6783 is cataloged in the U.S. Government catalog under NSN 4730-00-470-7124. 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.