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Technical Data Sheet
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105798 ✓ 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 LUBRICATING OIL,UTILITY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 0.562 INCHES NOMINAL IN, inside_diameter: 4.000 INCHES NOMINAL IN, style_designator: BAND, fastening_device_type: THUMB HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-589-3502, 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
105798
NSN: 4730-00-589-3502
FSC: 4730
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width0.562 INCHES NOMINAL IN
inside_diameter4.000 INCHES NOMINAL IN
style_designatorBAND
fastening_device_typeTHUMB HEAD SCREW
NSN4730-00-589-3502
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 105798 · 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 24
FF-B-187AInterchangeable
interchangeable cross-reference
interchangeable
BT28315Interchangeable
interchangeable cross-reference
interchangeable
28315Interchangeable
interchangeable cross-reference
interchangeable
492E17Interchangeable
interchangeable cross-reference
interchangeable
2299796Interchangeable
interchangeable cross-reference
interchangeable
8330889Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 105798?
105798 is a LUBRICATING OIL,UTILITY.
What parts can replace 105798?
There are 24 known substitutes for 105798: FF-B-187A, BT28315, 28315 and 21 more. Substitute compatibility should be verified for your specific system.
Is 105798 still available?
105798 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