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CON677-4406 — COUPLING ASSEMBLY,TUBE,FLEXIBLE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

CON677-4406: COUPLING ASSEMBLY,TUBE,FLEXIBLE.

COUPLING ASSEMBLY,TUBE,FLEXIBLE. Key specifications include material: COPPER ALLOY TUBING, design_form: STRAIGHT, overall_length: 4.000 INCHES NOMINAL IN, outside_diameter: 6.000 INCHES NOMINAL IN, style_designator: FLEXIBLE COUPLING ASSEMBLY, tube_outside_diameter: 4.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-351-8386, 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
CON677-4406
NSN: 4730-01-351-8386
NIINs: 013518386, 013537684
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 48928 — CONAIR GROUP INC DIV CONAIR AEROSPACE (CAN)
SPECIFICATIONS
materialCOPPER ALLOY TUBING
design_formSTRAIGHT
overall_length4.000 INCHES NOMINAL IN
outside_diameter6.000 INCHES NOMINAL IN
style_designatorFLEXIBLE COUPLING ASSEMBLY
tube_outside_diameter4.000 INCHES NOMINAL IN
tube_outside_diameter_for_which_designed6.000 INCHES NOMINAL IN
NSN4730-01-351-8386
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CON677-4406 · 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
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 6.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLEXIBLE COUPLING ASSEMBLY
•
OUTSIDE DIAMETER: 6.000 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED6.000 INCHES NOMINAL IN
STYLE DESIGNATORFLEXIBLE COUPLING ASSEMBLY
OVERALL LENGTH4.000 INCHES NOMINAL IN
OUTSIDE DIAMETER6.000 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 CON677-4406?
CON677-4406 is a COUPLING ASSEMBLY,TUBE,FLEXIBLE.
What is the NSN for CON677-4406?
CON677-4406 is cataloged in the U.S. Government catalog under NSN 4730-01-351-8386. 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.