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Technical Data Sheet
PartsTable / COMPONENT / 4-411-5L1
4-411-5L1 ✓ 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 A OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, nominal_thread_size: 0.500 INCHES FIRST END IN, nominal_overall_length: 1.900 INCHES 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 4730-00-073-5956, 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
4-411-5L1
NSN: 4730-00-073-5956
FSC: 4730
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY A OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
nominal_thread_size0.500 INCHES FIRST END IN
nominal_overall_length1.900 INCHES IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 SOCKET
criticality_code_justificationZZZY
material_document_and_classificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_inside_diameter_hose_accommodated0.250 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated0.578 INCHES SECOND END IN
NSN4730-00-073-5956
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-411-5L1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
•
FURNISHED ITEMS AND QUANTITY: 1 SOCKET
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.312 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.578 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE37.0 DEGREES FIRST END
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
FURNISHED ITEMS AND QUANTITY1 SOCKET
CRITICALITY CODE JUSTIFICATIONZZZY
THREAD SERIES DESIGNATORUNF FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.578 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.900 INCHES IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
44115Interchangeable
interchangeable cross-reference
interchangeable
13345Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
GGG-D-751Interchangeable
interchangeable cross-reference
interchangeable
3537.MOD ITEM 42Interchangeable
interchangeable cross-reference
interchangeable
3537 MOD ITEM 42Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-411-5L1?
4-411-5L1 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 4-411-5L1?
There are 8 known substitutes for 4-411-5L1: 44115, 13345, B94.11M and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-411-5L1?
4-411-5L1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-073-5956. 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