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1B5411 — TEE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1B5411: TEE,TUBE.

The TEE,TUBE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, thread_class: 3A ALL ENDS A, nominal_thread_size: 0.750 INCHES ALL ENDS IN, end_item_identification: ENGINE, AIRCRAFT, PW-100,F-117, C17A, thread_series_designator: UNF ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-398-9968, 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
1B5411
NSN: 4730-01-398-9968
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
thread_class3A ALL ENDS A
nominal_thread_size0.750 INCHES ALL ENDS IN
end_item_identificationENGINE, AIRCRAFT, PW-100,F-117, C17A
thread_series_designatorUNF ALL ENDS
NSN4730-01-398-9968
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1B5411 · 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 THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
THREAD CLASS: 3A ALL ENDS A
•
MATERIAL: TITANIUM ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
THREAD CLASS3A ALL ENDS A
END ITEM IDENTIFICATIONENGINE, AIRCRAFT, PW-100,F-117, C17A
MATERIALTITANIUM ALLOY OVERALL
THREAD SERIES DESIGNATORUNF ALL ENDS
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1B5411?
1B5411 is a TEE,TUBE.
What is the NSN for 1B5411?
1B5411 is cataloged in the U.S. Government catalog under NSN 4730-01-398-9968. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.