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300518-001 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

300518-001: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, overall_height: 1.380 INCHES NOMINAL IN, overall_length: 2.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-303-5732, 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
300518-001
NSN: 4730-01-303-5732
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 54933 — NORTH WIND TEST LLC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
tooth_formSTANDARD
overall_height1.380 INCHES NOMINAL IN
overall_length2.120 INCHES NOMINAL IN
pitch_diameter1.2188 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity39
special_featuresPLAIN HOLE 0.078 IN. DIA ON HUB FOR POSITIONINGA; END OF GROOVED HUB RECESSED TO FORM TWO LUGS 0.344IN. DEEP IN
style_designatorPROTRUDING HUBS
face_nominal_width0.219 INCHES IN
NSN4730-01-303-5732
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 300518-001 · 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 2
4730PL1058271Reference document
Same NSN cross-reference
Reference document — Informative reference only
300518Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 300518-001?
300518-001 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 300518-001?
There are 2 known substitutes for 300518-001: 4730PL1058271, 300518. Substitute compatibility should be verified for your specific system.
What is the NSN for 300518-001?
300518-001 is cataloged in the U.S. Government catalog under NSN 4730-01-303-5732. 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.