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7D0256-2 — FERRULE,SWAGE,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7D0256-2: FERRULE,SWAGE,TUBE COUPLING.

The FERRULE,SWAGE,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, slot_depth: 0.031 INCHES NOMINAL IN, slot_width: 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, flange_width: 0.060 INCHES MAXIMUM IN, overall_length: 0.732 INCHES MAXIMUM IN, style_designator: SINGLE FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-024-3787, 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
7D0256-2
NSN: 4730-01-024-3787
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
slot_depth0.031 INCHES NOMINAL IN
slot_width0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
flange_width0.060 INCHES MAXIMUM IN
slot_quantity6
overall_length0.732 INCHES MAXIMUM IN
style_designatorSINGLE FLANGE
flange_inside_diameter3.980 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationC17A AIRCRAFT
flange_outside_diameter4.334 INCHES MAXIMUM IN
sleeve_outside_diameter4.134 INCHES MINIMUM AND 4.154 INCHES MAXIMUM IN
NSN4730-01-024-3787
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7D0256-2 · 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
•
SLOT QUANTITY: 6
•
STYLE DESIGNATOR: SINGLE FLANGE
•
FLANGE INSIDE DIAMETER: 3.980 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN
•
SLEEVE OUTSIDE DIAMETER: 4.134 INCHES MINIMUM AND 4.154 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
SLOT DEPTH: 0.031 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.060 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SLOT QUANTITY6
STYLE DESIGNATORSINGLE FLANGE
FLANGE INSIDE DIAMETER3.980 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN
OVERALL LENGTH0.732 INCHES MAXIMUM IN
SLEEVE OUTSIDE DIAMETER4.134 INCHES MINIMUM AND 4.154 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SLOT DEPTH0.031 INCHES NOMINAL IN
FLANGE WIDTH0.060 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONC17A AIRCRAFT
MATERIALALUMINUM ALLOY 2024
SUBSTITUTES & CROSS-REFERENCES 4
7D0256Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
S3052-(SIZE)DEReference document
Same NSN cross-reference
Reference document — Drawing number reference only
S3052-64DESame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
GC550KJ64FSame 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 7D0256-2?
7D0256-2 is a FERRULE,SWAGE,TUBE COUPLING.
What parts can replace 7D0256-2?
There are 4 known substitutes for 7D0256-2: 7D0256, S3052-(SIZE)DE, S3052-64DE and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7D0256-2?
7D0256-2 is cataloged in the U.S. Government catalog under NSN 4730-01-024-3787. 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.