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PartsTable / COMPONENT / MIL-F-15049
MIL-F-15049 ✓ 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 NUT,TUBE COUPLING,REDUCING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, nominal_thread_size: 0.875 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-200-0312, 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-15049
NSN: 4730-00-200-0312
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle45.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.875 INCHES FIRST END IN
nominal_overall_length1.967 INCHES IN
thread_series_designatorNPTF SECOND END
nominal_outside_diameter_tube_accommodated0.625 INCHES FIRST END IN
NSN4730-00-200-0312
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-15049 · 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
•
LENGTH TO SHOULDER: 0.459 INCHES NOMINAL IN
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.250 INCHES IN
•
MATERIAL: COPPER ALLOY 360 OVERALL
•
FABRICATION METHOD: MACHINED
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH TO SHOULDER0.459 INCHES NOMINAL IN
NOMINAL TUBE OUTSIDE DIAMETER0.250 INCHES IN
LENGTH TO SHOULDER0.459 INCHES NOMINAL IN
MATERIALCOPPER ALLOY 360 OVERALL
FABRICATION METHODMACHINED
THREAD SERIESUNF
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
THREAD QUANTITY PER INCH18
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
662FSNRS4-64Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-15049?
MIL-F-15049 is a NUT,TUBE COUPLING,REDUCING.
What parts can replace MIL-F-15049?
There is 1 known substitute for MIL-F-15049: 662FSNRS4-64. Substitute compatibility should be verified for your specific system.
Is MIL-F-15049 still available?
MIL-F-15049 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