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GS530Y300 — COUPLING BODY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GS530Y300: COUPLING BODY,TUBE.

The COUPLING BODY,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, thread_size: 3-1/2-16, thread_class: 2A A, overall_length: 1.260 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN, outside_diameter: 3.562 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN, special_features: W/ALUMINUM ALLOY RETAINING RING. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-064-7347, 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
GS530Y300
NSN: 4730-01-064-7347
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_size3-1/2-16
thread_class2A A
overall_length1.260 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
outside_diameter3.562 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN
special_featuresW/ALUMINUM ALLOY RETAINING RING
style_designatorFLEXIBLE COUPLING BODY
thread_directionRIGHT-HAND
surface_treatmentANODIZE
screw_thread_series_designatorUN
tube_outside_diameter_for_which_designed3.000 INCHES NOMINAL IN
NSN4730-01-064-7347
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GS530Y300 · 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: 3.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLEXIBLE COUPLING BODY
•
OUTSIDE DIAMETER: 3.562 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SIZE: 3-1/2-16
•
SCREW THREAD SERIES DESIGNATOR: UN
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED3.000 INCHES NOMINAL IN
STYLE DESIGNATORFLEXIBLE COUPLING BODY
OVERALL LENGTH1.260 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.562 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD SIZE3-1/2-16
SPECIAL FEATURESW/ALUMINUM ALLOY RETAINING RING
SCREW THREAD SERIES DESIGNATORUN
SURFACE TREATMENTANODIZE
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 2
TA6-300Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
GS530YReference 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 GS530Y300?
GS530Y300 is a COUPLING BODY,TUBE.
What parts can replace GS530Y300?
There are 2 known substitutes for GS530Y300: TA6-300, GS530Y. Substitute compatibility should be verified for your specific system.
What is the NSN for GS530Y300?
GS530Y300 is cataloged in the U.S. Government catalog under NSN 4730-01-064-7347. 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.