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3204A — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3204A: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include center_hole_diameter: 4.950 INCHES NOMINAL IN, cross-sectional_height: 0.550 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-993-3711, 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
3204A
NSN: 4730-00-993-3711
NIINs: 009933711, 011451167
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
center_hole_diameter4.950 INCHES NOMINAL IN
cross-sectional_height0.550 INCHES NOMINAL IN
NSN4730-00-993-3711
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3204A · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES SECOND END IN
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 1.531 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
STYLE DESIGNATOR: GROOVED AND THREADED EXTERNAL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES SECOND END IN
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH1.531 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPEUNTHREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATORGROOVED AND THREADED EXTERNAL
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 3204A?
3204A is a COUPLING,PIPE.
What is the NSN for 3204A?
3204A is cataloged in the U.S. Government catalog under NSN 4730-00-993-3711. 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.