PartsTable
Technical Data Sheet
R11444 ✓ Verified by PartsTable
· BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: IRON CAST OVERALL, slot_width: 1.0625 INCHES NOMINAL FIRST IN, slot_length: 1.4375 INCHES NOMINAL FIRST IN, corner_shape: SQUARE ALL CORNERS, overall_length: 4.2500 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-447-3549, 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
R11444
NSN: 3120-00-447-3549
FSC: 3120
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialIRON CAST OVERALL
slot_width1.0625 INCHES NOMINAL FIRST IN
slot_length1.4375 INCHES NOMINAL FIRST IN
corner_shapeSQUARE ALL CORNERS
overall_length4.2500 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter3.2530 INCHES MINIMUM AND 3.2550 INCHES MAXIMUM IN
body_outside_diameter4.2450 INCHES MINIMUM AND 4.2470 INCHES MAXIMUM IN
antirotation/lubrication_type_and_quantity2 SLOT
NSN3120-00-447-3549
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: R11444 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
BODY INSIDE DIAMETER: 3.2530 INCHES MINIMUM AND 3.2550 INCHES MAXIMUM IN
CORNER SHAPE: SQUARE ALL CORNERS
BODY OUTSIDE DIAMETER: 4.2450 INCHES MINIMUM AND 4.2470 INCHES MAXIMUM IN
SLOT LENGTH: 1.4375 INCHES NOMINAL FIRST IN
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
SLOT WIDTH: 1.0625 INCHES NOMINAL FIRST IN
MATERIAL: IRON CAST OVERALL
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 2 SLOT
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER3.2530 INCHES MINIMUM AND 3.2550 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER4.2450 INCHES MINIMUM AND 4.2470 INCHES MAXIMUM IN
SLOT LENGTH1.4375 INCHES NOMINAL FIRST IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
SLOT WIDTH1.0625 INCHES NOMINAL FIRST IN
MATERIALIRON CAST OVERALL
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 SLOT
OVERALL LENGTH4.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
FFS103TYPE1STYLE5Interchangeable
interchangeable cross-reference
interchangeable
11444Interchangeable
interchangeable cross-reference
interchangeable
503-S 1Interchangeable
interchangeable cross-reference
interchangeable
44071Interchangeable
interchangeable cross-reference
interchangeable
150 1Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R11444?
R11444 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace R11444?
There are 20 known substitutes for R11444: FFS103TYPE1STYLE5, 11444, 503-S 1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R11444?
R11444 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-447-3549. This indicates validated use in U.S. government and defense supply chains.
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