PartsTable
Technical Data Sheet
B15.3 ✓ 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 B15.3 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-4217, 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
B15.3
NSN: 4730-00-278-4217
FSC: 4730
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberB15.3
NSN4730-00-278-4217
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B15.3 · 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: IRON OVERALL
OPERATING PRESSURE: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-I-666 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLE: PLAIN (PIPE) FIRST END
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
LEG LENGTH: 1.605 INCHES MINIMUM AND 1.645 INCHES MAXIMUM FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED: 1.000 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON OVERALL
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-I-666 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
LEG LENGTH1.605 INCHES MINIMUM AND 1.645 INCHES MAXIMUM FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
LEG LENGTH2.542 INCHES MINIMUM AND 2.582 INCHES MAXIMUM SECOND END IN
MAXIMUM OPERATING TEMP510.0 FAHRENHEIT SINGLE RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
M404-42Interchangeable
interchangeable cross-reference
interchangeable
0901725-2Interchangeable
interchangeable cross-reference
interchangeable
2213Interchangeable
interchangeable cross-reference
interchangeable
426546Interchangeable
interchangeable cross-reference
interchangeable
B153Interchangeable
interchangeable cross-reference
interchangeable
80207Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B15.3?
B15.3 is a B15.3.
What parts can replace B15.3?
There are 18 known substitutes for B15.3: M404-42, 0901725-2, 2213 and 15 more. Substitute compatibility should be verified for your specific system.
Is B15.3 still available?
B15.3 is currently cancelled.
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