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222-1851 — SLEEVE,COMPRESSION,TUBE-HOSE FIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

222-1851: SLEEVE,COMPRESSION,TUBE-HOSE FIT.

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, flow_angle: 90.0 DEGREES, leg_length: 20.3 MILLIMETERS NOMINAL FIRST END MM, nut_height: 0.730 INCHES NOMINAL IN, seat_angle: 20.0 DEGREES FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-409-7854, 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
222-1851
NSN: 4730-00-409-7854
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
flow_angle90.0 DEGREES
leg_length20.3 MILLIMETERS NOMINAL FIRST END MM
nut_height0.730 INCHES NOMINAL IN
seat_angle20.0 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class2A FIRST END A
overall_width0.375 INCHES NOMINAL IN
thread_seriesUNS
overall_length1.220 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST END
NSN4730-00-409-7854
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 222-1851 · 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
SUBSTITUTES & CROSS-REFERENCES 7
220475Reference document
Same NSN cross-reference
Reference document — Secondary reference
8-4 120202BAReference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-J246Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
836-0502B6005-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
J246 8-4 120202BAReference document
Same NSN cross-reference
Reference document — Secondary reference
J246Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 222-1851?
222-1851 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 222-1851?
There are 7 known substitutes for 222-1851: 220475, 8-4 120202BA, SAE-J246 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 222-1851?
222-1851 is cataloged in the U.S. Government catalog under NSN 4730-00-409-7854. This indicates validated use in U.S. government and defense supply chains.
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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.