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4392599 ✓ 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 PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, drive_end_style: RECESSED HEXAGON, connection_style: PLAIN (OPTIONAL END), nominal_thread_size: 20.0 MILLIMETERS EXTERNAL MM, end_item_identification: 2320-01-653-6516, thread_pitch_in_millimeters: 1.50 NOMINAL EXTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-678-0569, 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
4392599
NSN: 4730-01-678-0569
FSC: 4730
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
drive_end_styleRECESSED HEXAGON
connection_stylePLAIN (OPTIONAL END)
nominal_thread_size20.0 MILLIMETERS EXTERNAL MM
end_item_identification2320-01-653-6516
thread_pitch_in_millimeters1.50 NOMINAL EXTERNAL
part_name_assigned_by_controlling_agencyPLUG
NSN4730-01-678-0569
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4392599 · 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
•
NOMINAL THREAD SIZE: 20.0 MILLIMETERS EXTERNAL MM
•
THREAD PITCH IN MILLIMETERS: 1.50 NOMINAL EXTERNAL
•
CONNECTION STYLE: PLAIN (OPTIONAL END)
•
DRIVE END STYLE: RECESSED HEXAGON
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE20.0 MILLIMETERS EXTERNAL MM
THREAD PITCH IN MILLIMETERS1.50 NOMINAL EXTERNAL
CONNECTION STYLEPLAIN (OPTIONAL END)
DRIVE END STYLERECESSED HEXAGON
END ITEM IDENTIFICATION2320-01-653-6516
PART NAME ASSIGNED BY CONTROLLING AGENCYPLUG
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
702C-11-1Interchangeable
interchangeable cross-reference
interchangeable
58-10009Interchangeable
interchangeable cross-reference
interchangeable
ASME B94.19Interchangeable
interchangeable cross-reference
interchangeable
40128Interchangeable
interchangeable cross-reference
interchangeable
FS-33-PInterchangeable
interchangeable cross-reference
interchangeable
40128FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4392599?
4392599 is a PLUG,PIPE.
What parts can replace 4392599?
There are 11 known substitutes for 4392599: 702C-11-1, 58-10009, ASME B94.19 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4392599?
4392599 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-678-0569. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026