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D404 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

D404: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, overall_height: 3.125 INCHES NOMINAL IN, special_features: OUTLET ADAPTER W/QUICK COUPLER, thread_direction: RIGHT-HAND INLET, outlet_thread_direction: RIGHT-HAND, overall_outside_diameter: 1.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-211-2015, 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
D404
NSN: 4730-01-211-2015
NIINs: 012112015, 012341872
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 09177 — AM MULTIGRAPHICS DIV OF AM INTL INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
overall_height3.125 INCHES NOMINAL IN
special_featuresOUTLET ADAPTER W/QUICK COUPLER
thread_directionRIGHT-HAND INLET
outlet_thread_directionRIGHT-HAND
overall_outside_diameter1.625 INCHES NOMINAL IN
inlet_thread_quantity_per_inch18
inlet_thread_series_designatorUN
outlet_thread_quantity_per_inch18
outlet_thread_series_designatorNPT
inlet_connection_nominal_pipe_size1.625 INCHES IN
inlet_connection_type_and_quantity1 THREADED INTERNAL PIPE
NSN4730-01-211-2015
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: D404 · 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
SUBSTITUTES & CROSS-REFERENCES 1
7K0614Same 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 D404?
D404 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace D404?
There is 1 known substitute for D404: 7K0614. Substitute compatibility should be verified for your specific system.
What is the NSN for D404?
D404 is cataloged in the U.S. Government catalog under NSN 4730-01-211-2015. 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.