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Technical Data Sheet
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4TXSS ✓ 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 SLEEVE,FLARED,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, flange_width: 0.140 INCHES NOMINAL IN, overall_length: 0.410 INCHES NOMINAL IN, style_designator: SLEEVE, seat_angle_in_deg: 33.0, surface_treatment: PASSIVATE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-580-7471, 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
4TXSS
NSN: 4730-00-580-7471
FSC: 4730
CAGE: 09523 — PARKER-HANNIFIN CORPORATION DIV GAS TURBINE FUEL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
flange_width0.140 INCHES NOMINAL IN
overall_length0.410 INCHES NOMINAL IN
style_designatorSLEEVE
seat_angle_in_deg33.0
surface_treatmentPASSIVATE
casehardening_indicatorCASEHARDENED
flange_outside_diameter0.383 INCHES NOMINAL IN
sleeve_outside_diameter0.328 INCHES NOMINAL IN
metallic_hardness_rating70.0 MINIMUM ROCKWELL B AND 95.0 MAXIMUM ROCKWELL B
nondefinitive_spec/std_data14 FIGURE
specification/standard_data96906-MS51533 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-580-7471
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4TXSS · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
25317Interchangeable
interchangeable cross-reference
interchangeable
AA7T299Interchangeable
interchangeable cross-reference
interchangeable
3019359Interchangeable
interchangeable cross-reference
interchangeable
24447Interchangeable
interchangeable cross-reference
interchangeable
3014716Interchangeable
interchangeable cross-reference
interchangeable
4TXSSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4TXSS?
4TXSS is a SLEEVE,FLARED,TUBE FITTING.
What parts can replace 4TXSS?
There are 25 known substitutes for 4TXSS: 25317, AA7T299, 3019359 and 22 more. Substitute compatibility should be verified for your specific system.
Is 4TXSS still available?
4TXSS is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026