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Technical Data Sheet
PartsTable / COMPONENT / ANSI B16.39
ANSI B16.39 ✓ 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 ANSI B16.39 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-189-2639, 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
ANSI B16.39
NSN: 4730-00-189-2639
FSC: 4730
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberANSI B16.39
NSN4730-00-189-2639
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ANSI B16.39 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NONDEFINITIVE SPEC/STD DATA: XB TYPE
•
NOMINAL OVERALL LENGTH: 3.260 INCHES IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
COUPLING FLANGE SHAPE: HEXAGON
•
REDUCER TYPE: CONCENTRIC
•
NOMINAL THREAD SIZE: 2.000 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NONDEFINITIVE SPEC/STD DATAXB TYPE
NOMINAL OVERALL LENGTH3.260 INCHES IN
THREAD SERIES DESIGNATORNPT ALL ENDS
COUPLING FLANGE SHAPEHEXAGON
REDUCER TYPECONCENTRIC
NOMINAL THREAD SIZE2.000 INCHES ALL ENDS IN
COUPLING FLANGE SHAPEHEXAGON
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
MILU18250Interchangeable
interchangeable cross-reference
interchangeable
519-3-4Interchangeable
interchangeable cross-reference
interchangeable
B16.39Interchangeable
interchangeable cross-reference
interchangeable
198EInterchangeable
IBM 428GB 15K RPM SAS Disk Drive 3.5 (IBM i)
interchangeable
MILU18250TYPEXAInterchangeable
interchangeable cross-reference
interchangeable
1631-400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ANSI B16.39?
ANSI B16.39 is a ANSI B16.39.
What parts can replace ANSI B16.39?
There are 13 known substitutes for ANSI B16.39: MILU18250, 519-3-4, B16.39 and 10 more. Substitute compatibility should be verified for your specific system.
Is ANSI B16.39 still available?
ANSI B16.39 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