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PartsTable / COMPONENT / ASME B16.18-2018
ASME B16.18-2018 ✓ 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 ASME B16.18-2018 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 4730-00-328-5229, 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
ASME B16.18-2018
NSN: 4730-00-328-5229
FSC: 4730
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
Part NumberASME B16.18-2018
NSN4730-00-328-5229
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ASME B16.18-2018 · 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 OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES FIRST END IN
•
MATERIAL: COPPER ALLOY OVERALL
•
LEG LENGTH: 2.000 INCHES NOMINAL ALL ENDS IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
CONNECTION STYLE: SOCKET (TUBE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.250 INCHES FIRST END IN
MATERIALCOPPER ALLOY OVERALL
LEG LENGTH2.000 INCHES NOMINAL ALL ENDS IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES SECOND END IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
CONNECTION STYLESOCKET (TUBE) ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES THIRD END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
B16.18Interchangeable
interchangeable cross-reference
interchangeable
B16-18-1950TABLE5Interchangeable
interchangeable cross-reference
interchangeable
A1532Interchangeable
interchangeable cross-reference
interchangeable
C408Interchangeable
interchangeable cross-reference
interchangeable
A01532Interchangeable
interchangeable cross-reference
interchangeable
A-1667Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASME B16.18-2018?
ASME B16.18-2018 is a ASME B16.18-2018.
What parts can replace ASME B16.18-2018?
There are 20 known substitutes for ASME B16.18-2018: B16.18, B16-18-1950TABLE5, A1532 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ASME B16.18-2018?
ASME B16.18-2018 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-328-5229. 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.
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Last verified: July 2026