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7D0500A40 — RETAINER,COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7D0500A40: RETAINER,COUPLING.

The RETAINER,COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, inside_diameter: 3.190 INCHES NOMINAL IN, outside_diameter: 3.730 INCHES NOMINAL IN, special_features: NOM TUBE SIZE O.D. 2.500IN IN, end_item_identification: C-17A AIRCRAFT A.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-466-6052, 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
7D0500A40
NSN: 4730-01-466-6052
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
inside_diameter3.190 INCHES NOMINAL IN
outside_diameter3.730 INCHES NOMINAL IN
special_featuresNOM TUBE SIZE O.D. 2.500IN IN
end_item_identificationC-17A AIRCRAFT A
NSN4730-01-466-6052
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7D0500A40 · 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
•
OUTSIDE DIAMETER: 3.730 INCHES NOMINAL IN
•
INSIDE DIAMETER: 3.190 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER3.730 INCHES NOMINAL IN
INSIDE DIAMETER3.190 INCHES NOMINAL IN
SPECIAL FEATURESNOM TUBE SIZE O.D. 2.500IN IN
END ITEM IDENTIFICATIONC-17A AIRCRAFT A
MATERIALALUMINUM ALLOY
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
19C14-40AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7D0500A40?
7D0500A40 is a RETAINER,COUPLING.
What parts can replace 7D0500A40?
There is 1 known substitute for 7D0500A40: 19C14-40A. Substitute compatibility should be verified for your specific system.
What is the NSN for 7D0500A40?
7D0500A40 is cataloged in the U.S. Government catalog under NSN 4730-01-466-6052. 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.