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Technical Data Sheet
PartsTable / COMPONENT / MIL-F-83798/5A
MIL-F-83798/5A ✓ 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-83798/5A 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 4730-01-240-6110, 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-83798/5A
NSN: 4730-01-240-6110
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-F-83798/5A
NSN4730-01-240-6110
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-83798/5A · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
•
LEG LENGTH: 1.820 INCHES NOMINAL SECOND END IN
•
SPECIFICATION/STANDARD DATA: 96906-MS87022 GOVERNMENT STANDARD
•
THREAD CLASS: 3B FIRST END
•
SEAT ANGLE: 12.0 DEGREES FIRST END
•
FLOW ANGLE: 45.0 DEGREES
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.438 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
LEG LENGTH1.820 INCHES NOMINAL SECOND END IN
SPECIFICATION/STANDARD DATA96906-MS87022 GOVERNMENT STANDARD
THREAD CLASS3B FIRST END
SEAT ANGLE12.0 DEGREES FIRST END
FLOW ANGLE45.0 DEGREES
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.438 INCHES SECOND END IN
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.250 INCHES SECOND END IN
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
M83798/5-12Interchangeable
interchangeable cross-reference
interchangeable
880112-12DInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83798/5Interchangeable
interchangeable cross-reference
interchangeable
136-2045-16DInterchangeable
interchangeable cross-reference
interchangeable
25636-16-16DInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83798Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-83798/5A?
MIL-F-83798/5A is a MIL-F-83798/5A.
What parts can replace MIL-F-83798/5A?
There are 16 known substitutes for MIL-F-83798/5A: M83798/5-12, 880112-12D, MIL-DTL-83798/5 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-F-83798/5A?
MIL-F-83798/5A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-240-6110. 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