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CJM-1020 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

CJM-1020: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC AND LEAD AND COPPER ALLOY INNER LAYER, corner_shape: SQUARE ALL CORNERS, overall_length: 20.00 MILLIMETERS NOMINAL MM, style_designator: SPLIT, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 9.972 MILLIMETERS MINIMUM AND 9.987 MILLIMETERS MAXIMUM MM, body_outside_diameter: 12.000 MILLIMETERS MINIMUM AND 12.018 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-446-3378, 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
CJM-1020
NSN: 3120-01-446-3378
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 26124 — GGB LLC (USA)
SPECIFICATIONS
materialPLASTIC AND LEAD AND COPPER ALLOY INNER LAYER
corner_shapeSQUARE ALL CORNERS
overall_length20.00 MILLIMETERS NOMINAL MM
style_designatorSPLIT, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter9.972 MILLIMETERS MINIMUM AND 9.987 MILLIMETERS MAXIMUM MM
body_outside_diameter12.000 MILLIMETERS MINIMUM AND 12.018 MILLIMETERS MAXIMUM MM
NSN3120-01-446-3378
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: CJM-1020 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 12.000 MILLIMETERS MINIMUM AND 12.018 MILLIMETERS MAXIMUM MM
•
STYLE DESIGNATOR: SPLIT, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 9.972 MILLIMETERS MINIMUM AND 9.987 MILLIMETERS MAXIMUM MM
•
MATERIAL: STEEL OUTER LAYER
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER12.000 MILLIMETERS MINIMUM AND 12.018 MILLIMETERS MAXIMUM MM
STYLE DESIGNATORSPLIT, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH20.00 MILLIMETERS NOMINAL MM
BODY INSIDE DIAMETER9.972 MILLIMETERS MINIMUM AND 9.987 MILLIMETERS MAXIMUM MM
MATERIALSTEEL OUTER LAYER
MATERIALPLASTIC AND LEAD AND COPPER ALLOY INNER LAYER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES 3
MB1020DUReference document
Same NSN cross-reference
Reference document — Secondary reference
12420808Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
12420808-005Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CJM-1020?
CJM-1020 is a BEARING,SLEEVE.
What parts can replace CJM-1020?
There are 3 known substitutes for CJM-1020: MB1020DU, 12420808, 12420808-005. Substitute compatibility should be verified for your specific system.
What is the NSN for CJM-1020?
CJM-1020 is cataloged in the U.S. Government catalog under NSN 3120-01-446-3378. This indicates validated use in U.S. government and defense supply chains.
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