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GC550FC1 — ADAPTER,STRAIGHT,TUBE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GC550FC1: ADAPTER,STRAIGHT,TUBE TO HOSE.

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, connection_style: GROOVED INSIDE (TUBE) FIRST END, surface_treatment: ANODIZE OVERALL, nominal_overall_length: 1.445 INCHES IN, nominal_inside_diameter_hose_accommodated: 0.625 INCHES SECOND END IN, nominal_outside_diameter_tube_accommodated: 0.680 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-006-9937, 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
GC550FC1
NSN: 4730-00-006-9937
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
connection_styleGROOVED INSIDE (TUBE) FIRST END
surface_treatmentANODIZE OVERALL
nominal_overall_length1.445 INCHES IN
nominal_inside_diameter_hose_accommodated0.625 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.680 INCHES FIRST END IN
tubing_wall_nominal_thickness_for_which_designed0.065 INCHES FIRST END IN
NSN4730-00-006-9937
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GC550FC1 · 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: GROOVED INSIDE (TUBE) FIRST END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.625 INCHES SECOND END IN
•
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.065 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 1.445 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.680 INCHES FIRST END IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGROOVED INSIDE (TUBE) FIRST END
CONNECTION STYLEBEADED (HOSE) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.625 INCHES SECOND END IN
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED0.065 INCHES FIRST END IN
NOMINAL OVERALL LENGTH1.445 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.680 INCHES FIRST END IN
SURFACE TREATMENTANODIZE OVERALL
MATERIALALUMINUM ALLOY OVERALL
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

No substitute or cross-reference records for this part.

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 GC550FC1?
GC550FC1 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What is the NSN for GC550FC1?
GC550FC1 is cataloged in the U.S. Government catalog under NSN 4730-00-006-9937. 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.