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Technical Data Sheet
PartsTable / COMPONENT / 4-411-20
4-411-20 ✓ 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: NICKEL ALLOY OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED EXTERNAL HOSE GRIPPING SECOND END, operating_pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.625 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 4730-00-082-5995, 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
4-411-20
NSN: 4730-00-082-5995
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED EXTERNAL HOSE GRIPPING SECOND END
operating_pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.625 INCHES FIRST END IN
maximum_operating_temp300.0 FAHRENHEIT SECOND RESPONSE DEGF
nominal_overall_length3.190 INCHES IN
thread_quantity_per_inch12 FIRST END
thread_series_designatorUN FIRST END
nominal_inside_diameter_hose_accommodated1.120 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated1.500 INCHES SECOND END IN
NSN4730-00-082-5995
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-411-20 · 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
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-24787 GOVERNMENT SPECIFICATION
•
NOMINAL THREAD SIZE: 1.625 INCHES FIRST END IN
•
OPERATING PRESSURE: 625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 3.000 INCHES IN
•
MAXIMUM OPERATING TEMP: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 1.500 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA81349-MIL-F-24787 GOVERNMENT SPECIFICATION
NOMINAL THREAD SIZE1.625 INCHES FIRST END IN
OPERATING PRESSURE625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.250 INCHES FIRST END IN
NOMINAL OVERALL LENGTH3.000 INCHES IN
MAXIMUM OPERATING TEMP300.0 FAHRENHEIT SINGLE RESPONSE DEGF
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED1.500 INCHES SECOND END IN
THREAD CLASS2B FIRST END
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
5012-16MAInterchangeable
interchangeable cross-reference
interchangeable
H4011-16-MInterchangeable
interchangeable cross-reference
interchangeable
4-411-16Interchangeable
interchangeable cross-reference
interchangeable
4-411-10L1Interchangeable
interchangeable cross-reference
interchangeable
4-411-10Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/2TYAGRPVIII SIXE-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-411-20?
4-411-20 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 4-411-20?
There are 34 known substitutes for 4-411-20: 5012-16MA, H4011-16-M, 4-411-16 and 31 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-411-20?
4-411-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-082-5995. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026