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Technical Data Sheet
PartsTable / COMPONENT / ST9M623-450L
ST9M623-450L ✓ 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: 0.320 INCHES NOMINAL IN, inside_diameter: 4.210 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN, style_designator: WIRE, features_provided: LOCKWIRE HOLE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-289-1600, 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
ST9M623-450L
NSN: 4730-01-289-1600
FSC: 4730
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width0.320 INCHES NOMINAL IN
inside_diameter4.210 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
style_designatorWIRE
features_providedLOCKWIRE HOLE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-01-289-1600
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST9M623-450L · 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
•
STYLE DESIGNATOR: WIRE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
INSIDE DIAMETER: 4.210 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
•
FEATURES PROVIDED: LOCKWIRE HOLE
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORWIRE
MATERIALSTEEL CORROSION RESISTING OVERALL
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
INSIDE DIAMETER4.210 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
FEATURES PROVIDEDLOCKWIRE HOLE
OVERALL WIDTH0.320 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
817083Interchangeable
interchangeable cross-reference
interchangeable
C7898-150Interchangeable
interchangeable cross-reference
interchangeable
214-255Interchangeable
interchangeable cross-reference
interchangeable
ST9M623-275Interchangeable
interchangeable cross-reference
interchangeable
62M44Interchangeable
interchangeable cross-reference
interchangeable
10A260-275-1BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST9M623-450L?
ST9M623-450L is a CLAMP,HOSE.
What parts can replace ST9M623-450L?
There are 25 known substitutes for ST9M623-450L: 817083, C7898-150, 214-255 and 22 more. Substitute compatibility should be verified for your specific system.
Is ST9M623-450L still available?
ST9M623-450L 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