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P390A211 ✓ 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 EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL FLANGE, guide_type: INTERNAL, joint_type: SINGLE, design_type: CORRUGATED ELEMENT, overall_length: 10.000 INCHES NOMINAL IN, surface_treatment: PAINT FLANGE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-810-2431, 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
P390A211
NSN: 4730-00-810-2431
FSC: 4730
CAGE: 72957 — ELLIOTT COMPANY DIV JEANNETTE (USA)
SPECIFICATIONS
materialSTEEL FLANGE
guide_typeINTERNAL
joint_typeSINGLE
design_typeCORRUGATED ELEMENT
overall_length10.000 INCHES NOMINAL IN
surface_treatmentPAINT FLANGE
bolt_hole_diameter0.750 INCHES NOMINAL IN
bolt_hole_quantity4
end_connection_typeFLANGED
bolt_circle_diameter6.000 INCHES NOMINAL IN
equalization_characteristicSELF-EQUALIZING
nominal_pipe_size_designation3.000 INCHES IN
NSN4730-00-810-2431
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: P390A211 · 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
•
BOLT CIRCLE DIAMETER: 6.000 INCHES NOMINAL IN
•
GUIDE TYPE: INTERNAL
•
JOINT TYPE: SINGLE
•
EQUALIZATION CHARACTERISTIC: SELF-EQUALIZING
•
NOMINAL PIPE SIZE DESIGNATION: 3.000 INCHES IN
•
BOLT HOLE QUANTITY: 4
•
END CONNECTION TYPE: FLANGED
•
DESIGN TYPE: CORRUGATED ELEMENT
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE DIAMETER6.000 INCHES NOMINAL IN
GUIDE TYPEINTERNAL
JOINT TYPESINGLE
EQUALIZATION CHARACTERISTICSELF-EQUALIZING
NOMINAL PIPE SIZE DESIGNATION3.000 INCHES IN
BOLT HOLE QUANTITY4
END CONNECTION TYPEFLANGED
DESIGN TYPECORRUGATED ELEMENT
MATERIALSTEEL FLANGE
BOLT HOLE DIAMETER0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
READY-TO-SERVEInterchangeable
interchangeable cross-reference
interchangeable
MA-130-80Interchangeable
interchangeable cross-reference
interchangeable
A-A-20051Interchangeable
interchangeable cross-reference
interchangeable
83782Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P390A211?
P390A211 is a EXPANSION JOINT,PIPE.
What parts can replace P390A211?
There are 4 known substitutes for P390A211: READY-TO-SERVE, MA-130-80, A-A-20051 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P390A211?
P390A211 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-810-2431. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026