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7D0260 — COUPLING ASSEMBLY,TUBE,FLEXIBLE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7D0260: COUPLING ASSEMBLY,TUBE,FLEXIBLE.

COUPLING ASSEMBLY,TUBE,FLEXIBLE. Key specifications include material: ALUMINUM ALLOY, thread_size: 3.500-16, thread_class: 2A A, overall_length: 1.190 INCHES NOMINAL IN, outside_diameter: 3.000 INCHES NOMINAL IN, style_designator: FLEXIBLE COUPLING BODY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-358-6412, 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
7D0260
NSN: 4730-01-358-6412
NIINs: 013586412, 013586413, 013586414, 013697413, 013764636, 013774268, 014196436, 014196437, 014196439, 014196442
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_size3.500-16
thread_class2A A
overall_length1.190 INCHES NOMINAL IN
outside_diameter3.000 INCHES NOMINAL IN
style_designatorFLEXIBLE COUPLING BODY
thread_directionRIGHT-HAND
surface_treatmentANODIZE
end_item_identificationC-17A AIRCRAFT A
screw_thread_series_designatorUN
tube_outside_diameter_for_which_designed3.000 INCHES NOMINAL IN
NSN4730-01-358-6412
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7D0260 · 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: 4.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLEXIBLE COUPLING BODY
•
OUTSIDE DIAMETER: 5.710 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SIZE: 5-3/8-12
•
SCREW THREAD SERIES DESIGNATOR: UN
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED4.500 INCHES NOMINAL IN
STYLE DESIGNATORFLEXIBLE COUPLING BODY
OVERALL LENGTH1.760 INCHES NOMINAL IN
OUTSIDE DIAMETER5.710 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD SIZE5-3/8-12
SPECIAL FEATURESBLACK
SCREW THREAD SERIES DESIGNATORUN
SURFACE TREATMENTANODIZE
THREAD CLASS3A A
SUBSTITUTES & CROSS-REFERENCES 2
C31645ABReference document
Same NSN cross-reference
Reference document — Secondary reference
7D0260-72Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7D0260?
7D0260 is a COUPLING ASSEMBLY,TUBE,FLEXIBLE.
What parts can replace 7D0260?
There are 2 known substitutes for 7D0260: C31645AB, 7D0260-72. Substitute compatibility should be verified for your specific system.
What is the NSN for 7D0260?
7D0260 is cataloged in the U.S. Government catalog under NSN 4730-01-358-6412. 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.