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Technical Data Sheet
PartsTable / COMPONENT / 81-LX1/40TUBE
81-LX1/40TUBE ✓ 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 81-LX1/40TUBE is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-8368, 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
81-LX1/40TUBE
NSN: 4730-00-278-8368
FSC: 4730
CAGE: 30327 — IMPERIAL (USA)
SPECIFICATIONS
Part Number81-LX1/40TUBE
NSN4730-00-278-8368
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 81-LX1/40TUBE · 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 17
7024Interchangeable
interchangeable cross-reference
interchangeable
MILF24361SYM311Interchangeable
interchangeable cross-reference
interchangeable
C7024Interchangeable
interchangeable cross-reference
interchangeable
7-116SInterchangeable
interchangeable cross-reference
interchangeable
116157Interchangeable
interchangeable cross-reference
interchangeable
99-4000-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81-LX1/40TUBE?
81-LX1/40TUBE is a 81-LX1/40TUBE.
What parts can replace 81-LX1/40TUBE?
There are 17 known substitutes for 81-LX1/40TUBE: 7024, MILF24361SYM311, C7024 and 14 more. Substitute compatibility should be verified for your specific system.
Is 81-LX1/40TUBE still available?
81-LX1/40TUBE 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