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301-J-031 — COOLER,FLUID,INDUSTRIAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

301-J-031: COOLER,FLUID,INDUSTRIAL.

The COOLER,FLUID,INDUSTRIAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, reducer_type: CONCENTRIC, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) FIRST END, nominal_thread_size: 0.375 INCHES FIRST END IN, thread_series_designator: NPT ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-138-6133, 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
301-J-031
NSN: 4730-01-138-6133
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1MME1 — THERMAL ENGINEERING INTERNATIONAL (USA) INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
reducer_typeCONCENTRIC
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) FIRST END
nominal_thread_size0.375 INCHES FIRST END IN
thread_series_designatorNPT ALL ENDS
furnished_items_and_quantity1 PREFORMED PACKING
material_document_and_classificationMIL-C-15726 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN4730-01-138-6133
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 301-J-031 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 PREFORMED PACKING
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-15726 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-15726 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 4
301-J-0-301Reference document
Same NSN cross-reference
Reference document — Secondary reference
900-D-009Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
900-D-009 ITEM 21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
301-J-301Reference document
Same NSN cross-reference
Reference document — Secondary 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 301-J-031?
301-J-031 is a COOLER,FLUID,INDUSTRIAL.
What parts can replace 301-J-031?
There are 4 known substitutes for 301-J-031: 301-J-0-301, 900-D-009, 900-D-009 ITEM 21 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 301-J-031?
301-J-031 is cataloged in the U.S. Government catalog under NSN 4730-01-138-6133. This indicates validated use in U.S. government and defense supply chains.
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