PartsTable
Technical Data Sheet
2509SP-43766 ✓ 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

COUPLING ASSEMBLY,TUBE,FLEXIBLE. Key specifications include material: STEEL, overall_length: 19.500 INCHES NOMINAL IN, outside_diameter: 46.000 INCHES NOMINAL IN, style_designator: FLEXIBLE COUPLING ASSEMBLY, end_item_identification: FOR TURBINE EXHAUST, working_temp_and_service_type: 1000.0 DEG FAHRENHEIT NOMINAL AIR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-352-1939, 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
2509SP-43766
NSN: 4730-01-352-1939
FSC: 4730
CAGE: 70510 — HYSPAN PRECISION PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL
overall_length19.500 INCHES NOMINAL IN
outside_diameter46.000 INCHES NOMINAL IN
style_designatorFLEXIBLE COUPLING ASSEMBLY
end_item_identificationFOR TURBINE EXHAUST
working_temp_and_service_type1000.0 DEG FAHRENHEIT NOMINAL AIR
working_pressure_and_service_type12.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR LBS
tube_outside_diameter_for_which_designed40.000 INCHES NOMINAL IN
NSN4730-01-352-1939
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2509SP-43766 · 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
WORKING PRESSURE AND SERVICE TYPE: 12.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR LBS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 40.000 INCHES NOMINAL IN
OUTSIDE DIAMETER: 46.000 INCHES NOMINAL IN
MATERIAL: STEEL
STYLE DESIGNATOR: FLEXIBLE COUPLING ASSEMBLY
WORKING TEMP AND SERVICE TYPE: 1000.0 DEG FAHRENHEIT NOMINAL AIR
TECHNICAL CHARACTERISTICS (FLIS)
WORKING PRESSURE AND SERVICE TYPE12.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR LBS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED40.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONFOR TURBINE EXHAUST
OUTSIDE DIAMETER46.000 INCHES NOMINAL IN
MATERIALSTEEL
STYLE DESIGNATORFLEXIBLE COUPLING ASSEMBLY
WORKING TEMP AND SERVICE TYPE1000.0 DEG FAHRENHEIT NOMINAL AIR
OVERALL LENGTH19.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
100SL22Interchangeable
interchangeable cross-reference
interchangeable
4535Interchangeable
interchangeable cross-reference
interchangeable
6446Interchangeable
interchangeable cross-reference
interchangeable
62625Interchangeable
interchangeable cross-reference
interchangeable
SM6446Interchangeable
interchangeable cross-reference
interchangeable
1835Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2509SP-43766?
2509SP-43766 is a COUPLING ASSEMBLY,TUBE,FLEXIBLE.
What parts can replace 2509SP-43766?
There are 19 known substitutes for 2509SP-43766: 100SL22, 4535, 6446 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2509SP-43766?
2509SP-43766 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-352-1939. This indicates validated use in U.S. government and defense supply chains.
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