PartsTable
Technical Data Sheet
401-6B ✓ Verified by PartsTable
· 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

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, nominal_thread_size: 0.625 INCHES FIRST END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-592-0158, 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
401-6B
NSN: 4730-00-592-0158
FSC: 4730
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle45.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
nominal_thread_size0.625 INCHES FIRST END IN
nominal_overall_length2.050 INCHES IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 HOSE COUPLING NUT
nominal_inside_diameter_hose_accommodated0.310 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated0.670 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
NSN4730-00-592-0158
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 401-6B · 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 OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.670 INCHES SECOND END IN
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) SECOND END
THREAD CLASS: 2B FIRST END
THREAD SERIES DESIGNATOR: UNF FIRST END
NOMINAL THREAD SIZE: 0.625 INCHES FIRST END IN
MATERIAL: COPPER ALLOY OVERALL
NOMINAL OVERALL LENGTH: 2.050 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.670 INCHES SECOND END IN
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
THREAD CLASS2B FIRST END
THREAD SERIES DESIGNATORUNF FIRST END
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
NOMINAL THREAD SIZE0.625 INCHES FIRST END IN
MATERIALCOPPER ALLOY OVERALL
NOMINAL OVERALL LENGTH2.050 INCHES IN
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
RFT-SM-1TURL6 P47Interchangeable
interchangeable cross-reference
interchangeable
28-1532-P3-101Interchangeable
interchangeable cross-reference
interchangeable
4186-3-05-19Interchangeable
interchangeable cross-reference
interchangeable
012200-2Interchangeable
Same NIIN cross-reference
interchangeable
578-9200-1572633REVA8FTGFEMInterchangeable
Same NIIN cross-reference
interchangeable
60S-2134PC51FTGInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 401-6B?
401-6B is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 401-6B?
There are 9 known substitutes for 401-6B: RFT-SM-1TURL6 P47, 28-1532-P3-101, 4186-3-05-19 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 401-6B?
401-6B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-592-0158. This indicates validated use in U.S. government and defense supply chains.
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