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GC550AJ49C — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GC550AJ49C: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, leg_length: 0.560 INCHES NOMINAL IN, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION, connection_style: FLARED W/GASKET SEAL (BOSS) ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-352-8563, 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
GC550AJ49C
NSN: 4730-01-352-8563
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
leg_length0.560 INCHES NOMINAL IN
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
connection_styleFLARED W/GASKET SEAL (BOSS) ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.562 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorUNF ALL ENDS
furnished_items_and_quantity1 SEAL
quick_disconnect_nominal_size0.375 INCHES ALL ENDS IN
NSN4730-01-352-8563
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GC550AJ49C · 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
•
FURNISHED ITEMS AND QUANTITY: 1 SEAL
•
CONNECTION STYLE: FLARED W/GASKET SEAL (BOSS) ALL ENDS
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
QUICK DISCONNECT NOMINAL SIZE: 0.375 INCHES ALL ENDS IN
•
LEG LENGTH: 0.560 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 SEAL
CONNECTION STYLEFLARED W/GASKET SEAL (BOSS) ALL ENDS
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
CONNECTION TYPETHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
QUICK DISCONNECT NOMINAL SIZE0.375 INCHES ALL ENDS IN
LEG LENGTH0.560 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
THREAD CLASS2A ALL ENDS A
MATERIALCOPPER ALLOY BODY
SUBSTITUTES & CROSS-REFERENCES 1
BVEAC6Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GC550AJ49C?
GC550AJ49C is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace GC550AJ49C?
There is 1 known substitute for GC550AJ49C: BVEAC6. Substitute compatibility should be verified for your specific system.
What is the NSN for GC550AJ49C?
GC550AJ49C is cataloged in the U.S. Government catalog under NSN 4730-01-352-8563. 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.