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Y40204-9 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

Y40204-9: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include body_style: WALL TYPE, special_features: RECEPTACLE, 305MM; PLUG, 10-100 BASE TX, 568B MM, end_item_identification: DATA PORT ASSY, WULAN; JUNCTION BOX, LOCKED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-728-0520, 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
Y40204-9
NSN: 4730-00-728-0520
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78570 — SMITHS TUBULAR SYSTEMS-LACONIA, INC. (USA)
SPECIFICATIONS
body_styleWALL TYPE
special_featuresRECEPTACLE, 305MM; PLUG, 10-100 BASE TX, 568B MM
end_item_identificationDATA PORT ASSY, WULAN; JUNCTION BOX, LOCKED
NSN4730-00-728-0520
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: Y40204-9 · 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 5
GF503AA4Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
513-4-4CRReference document
Same NSN cross-reference
Reference document — Secondary reference
R4210NP-4-90Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
528-4SSReference document
Same NSN cross-reference
Reference document — Secondary reference
R4200NP-4-90Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is Y40204-9?
Y40204-9 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace Y40204-9?
There are 5 known substitutes for Y40204-9: GF503AA4, 513-4-4CR, R4210NP-4-90 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Y40204-9?
Y40204-9 is cataloged in the U.S. Government catalog under NSN 4730-00-728-0520. This indicates validated use in U.S. government and defense supply chains.
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