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2403211 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2403211: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, flange_diameter: 5.000 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, nominal_pipe_size_for_which_designed: 4.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-239-3689, 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
2403211
NSN: 4730-01-239-3689
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY
flange_diameter5.000 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
nominal_pipe_size_for_which_designed4.000 INCHES IN
NSN4730-01-239-3689
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2403211 · 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
•
FLANGE DIAMETER: 5.000 INCHES NOMINAL IN
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 4.000 INCHES IN
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER5.000 INCHES NOMINAL IN
NOMINAL PIPE SIZE FOR WHICH DESIGNED4.000 INCHES IN
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 5
2285-1115Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
508-5990030 ITEM FL-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
508-5590030 ITEM FL-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
508-5590030Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
508-5590030 ITEReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2403211?
2403211 is a FLANGE,PIPE.
What parts can replace 2403211?
There are 5 known substitutes for 2403211: 2285-1115, 508-5990030 ITEM FL-4, 508-5590030 ITEM FL-4 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2403211?
2403211 is cataloged in the U.S. Government catalog under NSN 4730-01-239-3689. 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.