PartsTable
Technical Data Sheet

D72/666 — TEE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

D72/666: TEE,PIPE.

The TEE,PIPE is a the manufacturer industrial component. Key specifications include special_features: FOR AIR BRAKE, nominal_thread_size: 0.375 INCHES FIRST END IN, end_item_identification: TANK,TRUCK/57556/, thread_series_designator: NPT SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-152-3084, 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
D72/666
NSN: 4730-01-152-3084
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: Z0950 — EATON INDUSTRIES PTY LTD T/A EATON HYDRAULICS GROUP (AUS)
SPECIFICATIONS
special_featuresFOR AIR BRAKE
nominal_thread_size0.375 INCHES FIRST END IN
end_item_identificationTANK,TRUCK/57556/
thread_series_designatorNPT SECOND END
NSN4730-01-152-3084
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: D72/666 · 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 THREAD SIZE: 0.375 INCHES SECOND END IN
•
THREAD SERIES DESIGNATOR: NPT THIRD END
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES THIRD END IN
SPECIAL FEATURESFOR AIR BRAKE
END ITEM IDENTIFICATIONTANK,TRUCK/57556/
THREAD SERIES DESIGNATORNPT THIRD END
THREAD SERIES DESIGNATORNPT SECOND END
THREAD SERIES DESIGNATORNPT FIRST END
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
63AX3714Reference document
Same NSN cross-reference
Reference document — Secondary reference
K-500-CH-1301Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D72/666?
D72/666 is a TEE,PIPE.
What parts can replace D72/666?
There are 2 known substitutes for D72/666: 63AX3714, K-500-CH-1301. Substitute compatibility should be verified for your specific system.
What is the NSN for D72/666?
D72/666 is cataloged in the U.S. Government catalog under NSN 4730-01-152-3084. 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.