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Technical Data Sheet
PartsTable / COMPONENT / ANSI B16.18
ANSI B16.18 ✓ 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 B16.18 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 4730-00-278-0292, 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 B16.18
NSN: 4730-00-278-0292
FSC: 4730
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberANSI B16.18
NSN4730-00-278-0292
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ANSI B16.18 · 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
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
•
CONNECTION STYLE: GROOVED INSIDE (TUBE) FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.500 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 1.500 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 2.438 INCHES IN
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.500 INCHES SECOND END IN
•
THREAD SERIES DESIGNATOR: NPT SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION STYLEGROOVED INSIDE (TUBE) FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.500 INCHES FIRST END IN
NOMINAL THREAD SIZE1.500 INCHES SECOND END IN
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
NOMINAL OVERALL LENGTH2.438 INCHES IN
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES SECOND END IN
THREAD SERIES DESIGNATORNPT SECOND END
CONNECTION STYLEPLAIN (PIPE) SECOND END
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
ANSI B16.18Interchangeable
interchangeable cross-reference
interchangeable
A2599-1X3-4Interchangeable
interchangeable cross-reference
interchangeable
A2599Interchangeable
interchangeable cross-reference
interchangeable
A2948-1 1-4X1Interchangeable
interchangeable cross-reference
interchangeable
A2948Interchangeable
interchangeable cross-reference
interchangeable
A1389-3-8X3-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ANSI B16.18?
ANSI B16.18 is a ANSI B16.18.
What parts can replace ANSI B16.18?
There are 20 known substitutes for ANSI B16.18: ANSI B16.18, A2599-1X3-4, A2599 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ANSI B16.18?
ANSI B16.18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0292. 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