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Technical Data Sheet
PartsTable / COMPONENT / MIL-F-83798/2
MIL-F-83798/2 ✓ 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 MIL-F-83798/2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-559-1600, 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
MIL-F-83798/2
NSN: 4730-00-559-1600
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-F-83798/2
NSN4730-00-559-1600
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-83798/2 · 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
•
MAXIMUM OPERATING TEMP: 121.0 FAHRENHEIT SECOND RESPONSE DEGF
•
LEG LENGTH: 1.828 INCHES NOMINAL SECOND END IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
FURNISHED ITEMS AND QUANTITY: 1 HOSE COUPLING NUT
•
SURFACE TREATMENT: ANODIZE OVERALL
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.281 INCHES SECOND END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP121.0 FAHRENHEIT SECOND RESPONSE DEGF
LEG LENGTH1.828 INCHES NOMINAL SECOND END IN
MATERIALALUMINUM ALLOY OVERALL
FURNISHED ITEMS AND QUANTITY1 HOSE COUPLING NUT
SURFACE TREATMENTANODIZE OVERALL
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.281 INCHES SECOND END IN
SEAT ANGLE37.0 DEGREES FIRST END
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
OPERATING PRESSURE1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP-54.0 FAHRENHEIT FIRST RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
136-2045-16DInterchangeable
interchangeable cross-reference
interchangeable
25636-16-16DInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83798Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83798/6Interchangeable
interchangeable cross-reference
interchangeable
M83798/6-16Interchangeable
interchangeable cross-reference
interchangeable
136-1045-6DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-83798/2?
MIL-F-83798/2 is a MIL-F-83798/2.
What parts can replace MIL-F-83798/2?
There are 27 known substitutes for MIL-F-83798/2: 136-2045-16D, 25636-16-16D, MIL-DTL-83798 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-F-83798/2?
MIL-F-83798/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-559-1600. 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