PartsTable
Technical Data Sheet
Download PDF

J522P01 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

J522P01: 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 ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, special_features: DRILLED FOR 2 SAFETY WIRE HOLES, 0.047 IN. DIA IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-182-5787, 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
J522P01
NSN: 4730-01-182-5787
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
special_featuresDRILLED FOR 2 SAFETY WIRE HOLES, 0.047 IN. DIA IN
nominal_thread_size0.4375 INCHES FIRST END IN
seat_nominal_radius0.312 INCHES ALL ENDS IN
nominal_overall_length1.300 INCHES IN
end_item_identificationB1B AIRCRAFT3
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classificationAMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-182-5787
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J522P01 · 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) ALL ENDS
•
SEAT NOMINAL RADIUS: 0.312 INCHES ALL ENDS IN
•
NOMINAL OVERALL LENGTH: 1.300 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.1875 INCHES SECOND END IN
•
NOMINAL THREAD SIZE: 0.4375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
SEAT NOMINAL RADIUS0.312 INCHES ALL ENDS IN
NOMINAL OVERALL LENGTH1.300 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.1875 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.4375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
SPECIAL FEATURESDRILLED FOR 2 SAFETY WIRE HOLES, 0.047 IN. DIA 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
Ready to buy J522P01?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is J522P01?
J522P01 is a REDUCER,TUBE.
What parts can replace J522P01?
There is 1 known substitute for J522P01: J522. Substitute compatibility should be verified for your specific system.
What is the NSN for J522P01?
J522P01 is cataloged in the U.S. Government catalog under NSN 4730-01-182-5787. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — J522P01

✓ 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.