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GS530Y — COUPLING BODY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GS530Y: COUPLING BODY,TUBE.

The COUPLING BODY,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, thread_size: 5.000-16, thread_class: 2A A, overall_length: 1.420 INCHES NOMINAL IN, outside_diameter: 5.150 INCHES NOMINAL IN, special_features: W/CRES RING. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-045-3427, 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
GS530Y
NSN: 4730-01-045-3427
NIINs: 010453427, 010647347, 012386315
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_size5.000-16
thread_class2A A
overall_length1.420 INCHES NOMINAL IN
outside_diameter5.150 INCHES NOMINAL IN
special_featuresW/CRES RING
style_designatorFLEXIBLE COUPLING BODY
thread_directionRIGHT-HAND
surface_treatmentANODIZE
specification/standard_data26512-GS530Y PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
screw_thread_series_designatorACME
tube_outside_diameter_for_which_designed4.500 INCHES NOMINAL IN
NSN4730-01-045-3427
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GS530Y · 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
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLEXIBLE COUPLING BODY
•
OUTSIDE DIAMETER: 2.585 INCHES MINIMUM AND 2.620 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
SPECIFICATION/STANDARD DATA: 26512-GS530Y GOVERNMENT STANDARD
•
THREAD SIZE: 2-1/2-16
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.000 INCHES NOMINAL IN
STYLE DESIGNATORFLEXIBLE COUPLING BODY
OVERALL LENGTH1.270 INCHES NOMINAL IN
OUTSIDE DIAMETER2.585 INCHES MINIMUM AND 2.620 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA26512-GS530Y GOVERNMENT STANDARD
THREAD SIZE2-1/2-16
SPECIAL FEATURESW/CRES RING
SCREW THREAD SERIES DESIGNATORUN
SURFACE TREATMENTANODIZE
SUBSTITUTES & CROSS-REFERENCES 2
TA6-200Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
GS530Y200Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 GS530Y?
GS530Y is a COUPLING BODY,TUBE.
What parts can replace GS530Y?
There are 2 known substitutes for GS530Y: TA6-200, GS530Y200. Substitute compatibility should be verified for your specific system.
What is the NSN for GS530Y?
GS530Y is cataloged in the U.S. Government catalog under NSN 4730-01-045-3427. 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.