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400-DP-ALH — PLUG,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

400-DP-ALH: PLUG,QUICK DISCONNECT.

The PLUG,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM BODY, overall_length: 3.0625 INCHES NOMINAL IN, special_features: MATERIAL IS ALUMINUM HARD COAT;PLUG NOT TO BE USED IN PRESSURE APPLICATIONS FOR SAFETY AND ENVIRONMENTAL REASONS, quick_disconnect_nominal_size: 4.000 INCHES IN, part_name_assigned_by_controlling_agency: DUST PLUG. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-518-6403, 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
400-DP-ALH
NSN: 4730-01-518-6403
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 72661 — DIXON VALVE & COUPLING COMPANY, LLC DIV DIXON FIRE (USA)
SPECIFICATIONS
materialALUMINUM BODY
overall_length3.0625 INCHES NOMINAL IN
special_featuresMATERIAL IS ALUMINUM HARD COAT;PLUG NOT TO BE USED IN PRESSURE APPLICATIONS FOR SAFETY AND ENVIRONMENTAL REASONS
quick_disconnect_nominal_size4.000 INCHES IN
part_name_assigned_by_controlling_agencyDUST PLUG
NSN4730-01-518-6403
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 400-DP-ALH · 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
•
QUICK DISCONNECT NOMINAL SIZE: 4.000 INCHES IN
•
MATERIAL: ALUMINUM BODY
TECHNICAL CHARACTERISTICS
OVERALL LENGTH3.0625 INCHES NOMINAL IN
QUICK DISCONNECT NOMINAL SIZE4.000 INCHES IN
SPECIAL FEATURESMATERIAL IS ALUMINUM HARD COAT;PLUG NOT TO BE USED IN PRESSURE APPLICATIONS FOR SAFETY AND ENVIRONMENTAL REASONS
PART NAME ASSIGNED BY CONTROLLING AGENCYDUST PLUG
MATERIALALUMINUM BODY
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

No substitute or cross-reference records for this part.

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 400-DP-ALH?
400-DP-ALH is a PLUG,QUICK DISCONNECT.
What is the NSN for 400-DP-ALH?
400-DP-ALH is cataloged in the U.S. Government catalog under NSN 4730-01-518-6403. 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.