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Technical Data Sheet
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570056 ✓ Verified by PartsTable
Legrand · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

Mechanisms supplied with rocker plates, to be equipped with support frames and surround plates.<br><br>Equipped with modular Jack connector with 1/4 turn terminal for fast connection (possible looping). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-5694, 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
570056
NSN: 4730-00-278-5694
FSC: 4730
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
operating_pressure2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.125 INCHES SECOND END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length0.780 INCHES IN
end_item_identification3930-00-327-1575
thread_series_designatorUNF FIRST END
nondefinitive_spec/std_data12C FIGURE
NSN4730-00-278-5694
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 570056 · Legrand ⚠ 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 FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
MATERIAL: COPPER ALLOY 360 OVERALL
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
THREAD CLASS: 2A FIRST END A
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
THREAD SERIES DESIGNATORUNF FIRST END
END ITEM IDENTIFICATION3930-00-327-1575
MATERIALCOPPER ALLOY 360 OVERALL
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD CLASS2A FIRST END A
THREAD SERIES DESIGNATORNPTF SECOND END
NOMINAL OVERALL LENGTH0.780 INCHES IN
SPECIFICATION/STANDARD DATA81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
0003352072Interchangeable
interchangeable cross-reference
interchangeable
3352072Interchangeable
interchangeable cross-reference
interchangeable
741AInterchangeable
interchangeable cross-reference
interchangeable
850S50NInterchangeable
interchangeable cross-reference
interchangeable
680Interchangeable
interchangeable cross-reference
interchangeable
1410-GF-680-FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 570056?
570056 is a ADAPTER,STRAIGHT,PIPE TO TUBE manufactured by Legrand.
What parts can replace 570056?
There are 14 known substitutes for 570056: 0003352072, 3352072, 741A and 11 more. Substitute compatibility should be verified for your specific system.
Is 570056 still available?
570056 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026