PartsTable
Technical Data Sheet
5520411 ✓ 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 COUPLING HALF,SELF-SEALING is a the manufacturer industrial component. Key specifications include material: STEEL BODY, seat_angle: 37.0 DEGREES LOCATION NOT OTHERWISE SPECIFIED, thread_class: 3B ALL ENDS, overall_length: 105.0 MILLIMETERS NOMINAL MM, connection_type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION, connection_style: INVERTED FLARE ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-225-9016, 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
5520411
NSN: 4730-01-225-9016
FSC: 4730
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL BODY
seat_angle37.0 DEGREES LOCATION NOT OTHERWISE SPECIFIED
thread_class3B ALL ENDS
overall_length105.0 MILLIMETERS NOMINAL MM
connection_typeTHREADED INTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleINVERTED FLARE ALL ENDS
style_designatorMALE COUPLING HALF
operating_pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.312 INCHES ALL ENDS IN
maximum_operating_temp120.0 CELSIUS SINGLE RESPONSE DEGC
media_for_which_designedWATER, SALT SINGLE RESPONSE
thread_quantity_per_inch12 ALL ENDS
NSN4730-01-225-9016
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5520411 · 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 TYPE: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION
MAXIMUM OPERATING TEMP: 120.0 CELSIUS SINGLE RESPONSE DEGC
THREAD QUANTITY PER INCH: 12 ALL ENDS
CONNECTION STYLE: INVERTED FLARE ALL ENDS
THREAD CLASS: 3B ALL ENDS
OPERATING PRESSURE: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH105.0 MILLIMETERS NOMINAL MM
CONNECTION TYPETHREADED INTERNAL TUBE FIRST FLUID END CONNECTION
MAXIMUM OPERATING TEMP120.0 CELSIUS SINGLE RESPONSE DEGC
THREAD QUANTITY PER INCH12 ALL ENDS
CONNECTION STYLEINVERTED FLARE ALL ENDS
THREAD CLASS3B ALL ENDS
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
NOMINAL THREAD SIZE1.312 INCHES ALL ENDS IN
MATERIALSTEEL BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
201091Interchangeable
interchangeable cross-reference
interchangeable
3H0682Interchangeable
interchangeable cross-reference
interchangeable
10125431Interchangeable
interchangeable cross-reference
interchangeable
239Interchangeable
interchangeable cross-reference
interchangeable
3588-7256Interchangeable
interchangeable cross-reference
interchangeable
380635-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5520411?
5520411 is a COUPLING HALF,SELF-SEALING.
What parts can replace 5520411?
There are 12 known substitutes for 5520411: 201091, 3H0682, 10125431 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5520411?
5520411 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-225-9016. This indicates validated use in U.S. government and defense supply chains.
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