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NGC550PP — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

NGC550PP: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include nominal_width: 3.480 INCHES IN, nominal_length: 2.500 INCHES IN, special_features: OUTER BODY MATERIAL: 2024-T351 ALUMINUM,LOCKSPRING ASSEMBLY: 300 SERIES CRES, FINISH: ANODIZE PER MIL-A-8625, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, supplementary_features: PRESSURES: OPERATING: 3000 PSIG,PROOF: 4500 PSIG, BURST: 7500 PSIG, TEMPERATURE RANGE: -54C TO 135C, end_item_identification: E-2D AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-625-6595, 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
NGC550PP
NSN: 4730-01-625-6595
NIINs: 016256595, 016258076
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
nominal_width3.480 INCHES IN
nominal_length2.500 INCHES IN
special_featuresOUTER BODY MATERIAL: 2024-T351 ALUMINUM,LOCKSPRING ASSEMBLY: 300 SERIES CRES, FINISH: ANODIZE PER MIL-A-8625
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
supplementary_featuresPRESSURES: OPERATING: 3000 PSIG,PROOF: 4500 PSIG, BURST: 7500 PSIG, TEMPERATURE RANGE: -54C TO 135C
end_item_identificationE-2D AIRCRAFT
part_name_assigned_by_controlling_agencyCOUPLING, QUICK DISCONNECT
NSN4730-01-625-6595
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: NGC550PP · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONE-2D AIRCRAFT
SUBSTITUTES & CROSS-REFERENCES 2
NGC550PP12Reference document
Same NSN cross-reference
Reference document — Secondary reference
44206NG1-12B-N1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 NGC550PP?
NGC550PP is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace NGC550PP?
There are 2 known substitutes for NGC550PP: NGC550PP12, 44206NG1-12B-N1. Substitute compatibility should be verified for your specific system.
What is the NSN for NGC550PP?
NGC550PP is cataloged in the U.S. Government catalog under NSN 4730-01-625-6595. 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.