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1511SP-34744 — EXPANSION JOINT,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1511SP-34744: EXPANSION JOINT,PIPE.

The EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL FLANGE, joint_type: DOUBLE, design_type: CORRUGATED ELEMENT, overall_length: 45.000 INCHES NOMINAL IN, end_connection_type: FLANGED, flange_outside_diameter: 19.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-285-6318, 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
1511SP-34744
NSN: 4730-01-285-6318
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 70510 — HYSPAN PRECISION PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL FLANGE
joint_typeDOUBLE
design_typeCORRUGATED ELEMENT
overall_length45.000 INCHES NOMINAL IN
end_connection_typeFLANGED
flange_outside_diameter19.000 INCHES NOMINAL IN
working_pressure_rating190.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
nominal_pipe_size_designation12.000 INCHES IN
NSN4730-01-285-6318
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1511SP-34744 · 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
•
NOMINAL PIPE SIZE DESIGNATION: 12.000 INCHES IN
•
DESIGN TYPE: CORRUGATED ELEMENT
•
END CONNECTION TYPE: FLANGED
•
WORKING PRESSURE RATING: 190.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
MATERIAL: STEEL FLANGE
•
JOINT TYPE: DOUBLE
•
FLANGE OUTSIDE DIAMETER: 19.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE DESIGNATION12.000 INCHES IN
DESIGN TYPECORRUGATED ELEMENT
END CONNECTION TYPEFLANGED
OVERALL LENGTH45.000 INCHES NOMINAL IN
WORKING PRESSURE RATING190.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
MATERIALSTEEL FLANGE
JOINT TYPEDOUBLE
FLANGE OUTSIDE DIAMETER19.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
34744Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1511SP-34744?
1511SP-34744 is a EXPANSION JOINT,PIPE.
What parts can replace 1511SP-34744?
There is 1 known substitute for 1511SP-34744: 34744. Substitute compatibility should be verified for your specific system.
What is the NSN for 1511SP-34744?
1511SP-34744 is cataloged in the U.S. Government catalog under NSN 4730-01-285-6318. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.