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J522P04 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

J522P04: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, reducer_type: CONCENTRIC, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, special_features: DRILLED FOR 2 SAFETY WIRE HOLES 0.055 IN. DIA IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-328-1378, 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
J522P04
NSN: 4730-01-328-1378
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
reducer_typeCONCENTRIC
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
special_featuresDRILLED FOR 2 SAFETY WIRE HOLES 0.055 IN. DIA IN
nominal_thread_size0.500 INCHES SECOND END IN
seat_nominal_radius0.312 INCHES FIRST END IN
nominal_overall_length1.400 INCHES IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) SECOND END
material_document_and_classificationAMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.312 INCHES SECOND END IN
NSN4730-01-328-1378
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J522P04 · 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
•
CONNECTION STYLE: FLARED (TUBE) SECOND END
•
SEAT NOMINAL RADIUS: 0.312 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 1.400 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
SEAT NOMINAL RADIUS0.312 INCHES FIRST END IN
SEAT NOMINAL RADIUS0.312 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.400 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 1
J522Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is J522P04?
J522P04 is a REDUCER,TUBE.
What parts can replace J522P04?
There is 1 known substitute for J522P04: J522. Substitute compatibility should be verified for your specific system.
What is the NSN for J522P04?
J522P04 is cataloged in the U.S. Government catalog under NSN 4730-01-328-1378. This indicates validated use in U.S. government and defense supply chains.
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