PartsTable
Technical Data Sheet
ST9M439-1 ✓ 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 INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: RUBBER OUTER LAYER, corner_shape: SQUARE ALL CORNERS, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, coil_form_type: SOLID SINGLE COMPONENT, inclosure_type: FULLY INCLOSED, overall_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-827-7366, 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
ST9M439-1
NSN: 4730-00-827-7366
FSC: 4730
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialRUBBER OUTER LAYER
corner_shapeSQUARE ALL CORNERS
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
coil_form_typeSOLID SINGLE COMPONENT
inclosure_typeFULLY INCLOSED
overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
quality_factor30 MINIMUM SINGLE COMPONENT SINGLE WINDING
mounting_methodTERMINAL SINGLE GROUP
overall_diameter0.085 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
special_featuresDRILL CHUCK W/ KEY, REAMING SPEED; CLAMPING RANGE: UP TO 7.3 MM; FOR ORTHOPEDIC SURGICAL PROCEDURES; COMPONENT OF TRAUMA RECON SET FOR MILITARY, 6545-01-590-5820 MM
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
core_constructionPOWDERED SINGLE COMPONENT
NSN4730-00-827-7366
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST9M439-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
15488Interchangeable
interchangeable cross-reference
interchangeable
SL5442PC77Interchangeable
interchangeable cross-reference
interchangeable
3649PInterchangeable
interchangeable cross-reference
interchangeable
550-3399-43Interchangeable
interchangeable cross-reference
interchangeable
1A3900MInterchangeable
interchangeable cross-reference
interchangeable
LT10K091Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST9M439-1?
ST9M439-1 is a INVERTED NUT,TUBE COUPLING.
What parts can replace ST9M439-1?
There are 8 known substitutes for ST9M439-1: 15488, SL5442PC77, 3649P and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST9M439-1?
ST9M439-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-827-7366. This indicates validated use in U.S. government and defense supply chains.
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