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R2221B — CARTRIDGE,AIRCRAFT FIRE EXTINGUI

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

R2221B: CARTRIDGE,AIRCRAFT FIRE EXTINGUI.

CARTRIDGE,AIRCRAFT FIRE EXTINGUI. Key specifications include overall_length: 1.2500 INCHES NOMINAL IN, special_features: ROLLER TYPE: SOLID, overall_outside_diameter: 1.7500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-120-4337, 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
R2221B
NSN: 3110-00-120-4337
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
overall_length1.2500 INCHES NOMINAL IN
special_featuresROLLER TYPE: SOLID
overall_outside_diameter1.7500 INCHES NOMINAL IN
NSN3110-00-120-4337
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: R2221B · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL OUTSIDE DIAMETER: 1.7500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL LENGTH1.2500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.7500 INCHES NOMINAL IN
SPECIAL FEATURESROLLER TYPE: SOLID
SUBSTITUTES & CROSS-REFERENCES 8
675385Reference document
Same NSN cross-reference
Reference document — Secondary reference
94720Reference document
Same NSN cross-reference
Reference document — Secondary reference
200420Reference document
Same NSN cross-reference
Reference document — Secondary reference
T15237Reference document
Same NSN cross-reference
Reference document — Secondary reference
J40-1640Reference document
Same NSN cross-reference
Reference document — Secondary reference
2221BReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R2221B?
R2221B is a CARTRIDGE,AIRCRAFT FIRE EXTINGUI.
What parts can replace R2221B?
There are 8 known substitutes for R2221B: 675385, 94720, 200420 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R2221B?
R2221B is cataloged in the U.S. Government catalog under NSN 3110-00-120-4337. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.