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PartsTable / COMPONENT / J514 6-4 140139S
J514 6-4 140139S ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, reducer_type: CONCENTRIC, connection_style: PLAIN (PIPE) SECOND END, surface_treatment: PASSIVATE OVERALL, nominal_thread_size: 0.250 INCHES SECOND END IN, nominal_overall_length: 1.440 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-087-4811, 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
J514 6-4 140139S
NSN: 4730-00-087-4811
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
reducer_typeCONCENTRIC
connection_stylePLAIN (PIPE) SECOND END
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.250 INCHES SECOND END IN
nominal_overall_length1.440 INCHES IN
thread_series_designatorNPTF ALL ENDS
nondefinitive_spec/std_data40 FIGURE
specification/standard_data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-087-4811
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J514 6-4 140139S · 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: 0.250 INCHES SECOND END IN
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
REDUCER TYPE: CONCENTRIC
•
NOMINAL OVERALL LENGTH: 1.440 INCHES IN
•
THREAD SERIES DESIGNATOR: NPTF ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
SURFACE TREATMENTPASSIVATE OVERALL
REDUCER TYPECONCENTRIC
NOMINAL OVERALL LENGTH1.440 INCHES IN
THREAD SERIES DESIGNATORNPTF ALL ENDS
NONDEFINITIVE SPEC/STD DATA40 FIGURE
SPECIFICATION/STANDARD DATA81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
875291Interchangeable
interchangeable cross-reference
interchangeable
3/8X1/4FG-SSInterchangeable
interchangeable cross-reference
interchangeable
50-8370Interchangeable
interchangeable cross-reference
interchangeable
30-8370Interchangeable
interchangeable cross-reference
interchangeable
A8095Interchangeable
interchangeable cross-reference
interchangeable
954F030 ITEM 64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J514 6-4 140139S?
J514 6-4 140139S is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace J514 6-4 140139S?
There are 17 known substitutes for J514 6-4 140139S: 875291, 3/8X1/4FG-SS, 50-8370 and 14 more. Substitute compatibility should be verified for your specific system.
Is J514 6-4 140139S still available?
J514 6-4 140139S 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