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GC550DM12 — ADAPTER,STRAIGHT,TUBE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GC550DM12: ADAPTER,STRAIGHT,TUBE TO HOSE.

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END, surface_treatment: PASSIVATE SOCKET. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-064-4178, 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
GC550DM12
NSN: 4730-01-064-4178
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
seat_angle37.0 DEGREES FIRST END
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
surface_treatmentPASSIVATE SOCKET
nominal_thread_size1.062 INCHES FIRST END IN
maximum_operating_temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_quantity_per_inch12 FIRST END
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) FIRST END
material_document_and_classificationAMS-5639 ASSN STD SINGLE MATERIAL RESPONSE SOCKET
nominal_inside_diameter_hose_accommodated0.750 INCHES SECOND END IN
NSN4730-01-064-4178
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GC550DM12 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE NUT
•
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.750 INCHES SECOND END IN
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE SOCKET
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-5639 ASSN STD SINGLE MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-5639 ASSN STD SINGLE MATERIAL RESPONSE SOCKET
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
GC550DMReference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 GC550DM12?
GC550DM12 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace GC550DM12?
There is 1 known substitute for GC550DM12: GC550DM. Substitute compatibility should be verified for your specific system.
What is the NSN for GC550DM12?
GC550DM12 is cataloged in the U.S. Government catalog under NSN 4730-01-064-4178. This indicates validated use in U.S. government and defense supply chains.
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