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19R34-40A — RETAINER,COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

19R34-40A: RETAINER,COUPLING.

The RETAINER,COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, inside_diameter: 2.786 INCHES MINIMUM AND 2.791 INCHES MAXIMUM IN, outside_diameter: 2.880 INCHES MINIMUM AND 2.930 INCHES MAXIMUM IN, special_features: WIDTH IS 1.059 IN,ACCOMODATING TUBE SIZE O.D. IS 2.500 IN IN, end_item_identification: C-17A AIRCRAFT A.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-466-6040, 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
19R34-40A
NSN: 4730-01-466-6040
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 24984 — HYDRAFLOW (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
inside_diameter2.786 INCHES MINIMUM AND 2.791 INCHES MAXIMUM IN
outside_diameter2.880 INCHES MINIMUM AND 2.930 INCHES MAXIMUM IN
special_featuresWIDTH IS 1.059 IN,ACCOMODATING TUBE SIZE O.D. IS 2.500 IN IN
end_item_identificationC-17A AIRCRAFT A
NSN4730-01-466-6040
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 19R34-40A · 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: 2.880 INCHES MINIMUM AND 2.930 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 2.786 INCHES MINIMUM AND 2.791 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER2.880 INCHES MINIMUM AND 2.930 INCHES MAXIMUM IN
INSIDE DIAMETER2.786 INCHES MINIMUM AND 2.791 INCHES MAXIMUM IN
SPECIAL FEATURESWIDTH IS 1.059 IN,ACCOMODATING TUBE SIZE O.D. IS 2.500 IN 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
7D0501Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 19R34-40A?
19R34-40A is a RETAINER,COUPLING.
What parts can replace 19R34-40A?
There is 1 known substitute for 19R34-40A: 7D0501. Substitute compatibility should be verified for your specific system.
What is the NSN for 19R34-40A?
19R34-40A is cataloged in the U.S. Government catalog under NSN 4730-01-466-6040. 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.