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Technical Data Sheet
PartsTable / COMPONENT / B16.12
B16.12 ✓ 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 B16.12 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-246-9211, 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
B16.12
NSN: 4730-00-246-9211
FSC: 4730
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
Part NumberB16.12
NSN4730-00-246-9211
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B16.12 · 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: THREADED INTERNAL PIPE ALL ENDS
•
MATERIAL: IRON OVERALL
•
NOMINAL THREAD SIZE: 4.000 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE
•
MEDIA FOR WHICH DESIGNED: STEAM FIRST RESPONSE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 1 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
MAXIMUM OPERATING TEMP: 260.0 CELSIUS FIRST RESPONSE DEGC
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MATERIALIRON OVERALL
NOMINAL THREAD SIZE4.000 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
NONDEFINITIVE SPEC/STD DATA2 TYPE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 1 FED SPEC ALL TREATMENT RESPONSES OVERALL
MAXIMUM OPERATING TEMP260.0 CELSIUS FIRST RESPONSE DEGC
SURFACE TREATMENTZINC OVERALL
MAXIMUM OPERATING TEMP65.6 CELSIUS SECOND RESPONSE DEGC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
6532070Interchangeable
interchangeable cross-reference
interchangeable
6761281Interchangeable
interchangeable cross-reference
interchangeable
ME90Interchangeable
interchangeable cross-reference
interchangeable
WW-P-491Interchangeable
interchangeable cross-reference
interchangeable
B16.12Interchangeable
interchangeable cross-reference
interchangeable
MS90522-5K1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B16.12?
B16.12 is a B16.12.
What parts can replace B16.12?
There are 14 known substitutes for B16.12: 6532070, 6761281, ME90 and 11 more. Substitute compatibility should be verified for your specific system.
Is B16.12 still available?
B16.12 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