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GS531E450A — COUPLING BODY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GS531E450A: COUPLING BODY,TUBE.

The COUPLING BODY,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, thread_size: 5-16, thread_class: 2A A, overall_length: 1.420 INCHES NOMINAL IN, outside_diameter: 5.120 INCHES NOMINAL IN, style_designator: FLEXIBLE COUPLING BODY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-129-5386, 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
GS531E450A
NSN: 4730-01-129-5386
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
thread_size5-16
thread_class2A A
overall_length1.420 INCHES NOMINAL IN
outside_diameter5.120 INCHES NOMINAL IN
style_designatorFLEXIBLE COUPLING BODY
thread_directionRIGHT-HAND
surface_treatmentANODIZE
screw_thread_series_designatorACME G
tube_outside_diameter_for_which_designed4.500 INCHES NOMINAL IN
NSN4730-01-129-5386
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GS531E450A · 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: 4.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLEXIBLE COUPLING BODY
•
OUTSIDE DIAMETER: 5.120 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SIZE: 5-16
•
SCREW THREAD SERIES DESIGNATOR: ACME G
•
SURFACE TREATMENT: ANODIZE
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED4.500 INCHES NOMINAL IN
STYLE DESIGNATORFLEXIBLE COUPLING BODY
OVERALL LENGTH1.420 INCHES NOMINAL IN
OUTSIDE DIAMETER5.120 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD SIZE5-16
SCREW THREAD SERIES DESIGNATORACME G
SURFACE TREATMENTANODIZE
THREAD CLASS2A A
MATERIALALUMINUM ALLOY 2024
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 2
T22-450AReference document
Same NSN cross-reference
Reference document — Secondary reference
T22-450Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 GS531E450A?
GS531E450A is a COUPLING BODY,TUBE.
What parts can replace GS531E450A?
There are 2 known substitutes for GS531E450A: T22-450A, T22-450. Substitute compatibility should be verified for your specific system.
What is the NSN for GS531E450A?
GS531E450A is cataloged in the U.S. Government catalog under NSN 4730-01-129-5386. 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.