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Technical Data Sheet
PartsTable / COMPONENT / 230399
230399 ✓ 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 COOLER,FLUID,TRANSMISSION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-6319, 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
230399
NSN: 4730-00-278-6319
FSC: 4730
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
NSN4730-00-278-6319
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 230399 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
20546-5Interchangeable
interchangeable cross-reference
interchangeable
269305-5Interchangeable
interchangeable cross-reference
interchangeable
30606Interchangeable
interchangeable cross-reference
interchangeable
700406-02-0001Interchangeable
interchangeable cross-reference
interchangeable
10827Interchangeable
interchangeable cross-reference
interchangeable
23343FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 230399?
230399 is a COOLER,FLUID,TRANSMISSION.
What parts can replace 230399?
There are 25 known substitutes for 230399: 20546-5, 269305-5, 30606 and 22 more. Substitute compatibility should be verified for your specific system.
Is 230399 still available?
230399 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026