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ST9M540-144 ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 0.562 INCHES NOMINAL IN, inside_diameter: 3.625 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN, style_designator: WIRE, surface_treatment: PASSIVATE OVERALL, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-219-7786, 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
ST9M540-144
NSN: 4730-01-219-7786
FSC: 4730
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width0.562 INCHES NOMINAL IN
inside_diameter3.625 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
style_designatorWIRE
surface_treatmentPASSIVATE OVERALL
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-01-219-7786
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST9M540-144 · 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: STEEL CORROSION RESISTING BAND
•
STYLE DESIGNATOR: WIRE
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
INSIDE DIAMETER: 3.562 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING BAND
MATERIALSTEEL COMP 410 SCREW
STYLE DESIGNATORWIRE
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
INSIDE DIAMETER3.562 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
9464Interchangeable
interchangeable cross-reference
interchangeable
H64Interchangeable
interchangeable cross-reference
interchangeable
9464PInterchangeable
interchangeable cross-reference
interchangeable
62064Interchangeable
interchangeable cross-reference
interchangeable
9121C4009-2Interchangeable
interchangeable cross-reference
interchangeable
0N149943Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST9M540-144?
ST9M540-144 is a CLAMP,HOSE.
What parts can replace ST9M540-144?
There are 19 known substitutes for ST9M540-144: 9464, H64, 9464P and 16 more. Substitute compatibility should be verified for your specific system.
Is ST9M540-144 still available?
ST9M540-144 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