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Technical Data Sheet
PartsTable / COMPONENT / 218184-8
218184-8 ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include length: 0.438 INCHES NOMINAL IN, insert_size: 0.524 IN. MIN,0.549 IN.

MAX FREE OD IN, style_designator: COIL. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-484-9661, 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
218184-8
NSN: 4730-01-484-9661
FSC: 4730
CAGE: 10237 — CADILLAC GAGE TEXTRON INC. (USA)
SPECIFICATIONS
length0.438 INCHES NOMINAL IN
insert_size0.524 IN. MIN,0.549 IN. MAX FREE OD IN
style_designatorCOIL
NSN4730-01-484-9661
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 218184-8 · 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 3
218184Interchangeable
interchangeable cross-reference
interchangeable
3591-7CNW0438Interchangeable
interchangeable cross-reference
interchangeable
NASM8846Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 218184-8?
218184-8 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 218184-8?
There are 3 known substitutes for 218184-8: 218184, 3591-7CNW0438, NASM8846. Substitute compatibility should be verified for your specific system.
What is the NSN for 218184-8?
218184-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-484-9661. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026