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209856 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

209856: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, inscription: A BACK, overall_width: 24.2 MILLIMETERS NOMINAL MM, terminal_type: TAB W/SCREW, thread_length: 0.375 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN, overall_height: 4.17 MILLIMETERS MINIMUM AND 5.33 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-476-8024, 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
209856
NSN: 4730-01-476-8024
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0DT23 — EATON CORPORATION DBA EATON INOAC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
inscriptionA BACK
overall_width24.2 MILLIMETERS NOMINAL MM
terminal_typeTAB W/SCREW
thread_length0.375 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN
overall_height4.17 MILLIMETERS MINIMUM AND 5.33 MILLIMETERS MAXIMUM MM
overall_length18.4 MILLIMETERS MINIMUM AND 18.8 MILLIMETERS MAXIMUM MM
mounting_methodFLANGE
effective_length15.5 MILLIMETERS MINIMUM AND 16.0 MILLIMETERS MAXIMUM MM
overall_diameter1.690 INCHES NOMINAL IN
style_designatorFLAT
features_providedELECTRICAL ACCESS PORT
NSN4730-01-476-8024
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 209856 · 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
44663Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 209856?
209856 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 209856?
There is 1 known substitute for 209856: 44663. Substitute compatibility should be verified for your specific system.
What is the NSN for 209856?
209856 is cataloged in the U.S. Government catalog under NSN 4730-01-476-8024. 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.