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G617B48D — RETAINER,COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

G617B48D: RETAINER,COUPLING.

The RETAINER,COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, inside_diameter: 3.288 INCHES NOMINAL IN, outside_diameter: 3.400 INCHES NOMINAL IN, special_features: NOMINAL TUBE SIZE 3 INCHES; STRAIGHT KNURLED SURFACE IN, end_item_identification: C-17A ACFT A, part_name_assigned_by_controlling_agency: SLEEVE,SEAL-METALLIC, CLAMSHELL COUPLER. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-502-9503, 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
G617B48D
NSN: 4730-01-502-9503
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79326 — TRANSDIGM INC DIV ADELWIGGINS GROUP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
inside_diameter3.288 INCHES NOMINAL IN
outside_diameter3.400 INCHES NOMINAL IN
special_featuresNOMINAL TUBE SIZE 3 INCHES; STRAIGHT KNURLED SURFACE IN
end_item_identificationC-17A ACFT A
part_name_assigned_by_controlling_agencySLEEVE,SEAL-METALLIC, CLAMSHELL COUPLER
NSN4730-01-502-9503
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: G617B48D · 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: 3.400 INCHES NOMINAL IN
•
INSIDE DIAMETER: 3.288 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER3.400 INCHES NOMINAL IN
INSIDE DIAMETER3.288 INCHES NOMINAL IN
SPECIAL FEATURESNOMINAL TUBE SIZE 3 INCHES; STRAIGHT KNURLED SURFACE IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSLEEVE,SEAL-METALLIC, CLAMSHELL COUPLER
END ITEM IDENTIFICATIONC-17A ACFT 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
7D0501A48Same 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 G617B48D?
G617B48D is a RETAINER,COUPLING.
What parts can replace G617B48D?
There is 1 known substitute for G617B48D: 7D0501A48. Substitute compatibility should be verified for your specific system.
What is the NSN for G617B48D?
G617B48D is cataloged in the U.S. Government catalog under NSN 4730-01-502-9503. 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.