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GC550JB8N036 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GC550JB8N036: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) FIRST END, style_designator: RIGID, SHORT CENTER WRENCHING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-447-4778, 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
GC550JB8N036
NSN: 4730-01-447-4778
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) FIRST END
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
nominal_thread_size0.719 INCHES FIRST END IN
nominal_overall_length0.918 INCHES IN
thread_quantity_per_inch20 FIRST END
thread_series_designatorUNJS FIRST END
nominal_outside_diameter_tube_accommodated0.500 INCHES ALL ENDS IN
tubing_wall_nominal_thickness_for_which_designed0.036 INCHES SECOND END IN
NSN4730-01-447-4778
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GC550JB8N036 · 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
•
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
•
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.036 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 0.918 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
STYLE DESIGNATOR: RIGID, SHORT CENTER WRENCHING FACILITY
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEBEVELED (TUBE) SECOND END
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED0.036 INCHES SECOND END IN
NOMINAL OVERALL LENGTH0.918 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPEBUTT WELD TUBE SECOND END
STYLE DESIGNATORRIGID, SHORT CENTER WRENCHING FACILITY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.719 INCHES FIRST END IN
SEAT ANGLE12.0 DEGREES FIRST END
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 1
GC550JBReference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 GC550JB8N036?
GC550JB8N036 is a COUPLING,TUBE.
What parts can replace GC550JB8N036?
There is 1 known substitute for GC550JB8N036: GC550JB. Substitute compatibility should be verified for your specific system.
What is the NSN for GC550JB8N036?
GC550JB8N036 is cataloged in the U.S. Government catalog under NSN 4730-01-447-4778. This indicates validated use in U.S. government and defense supply chains.
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