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Technical Data Sheet
PartsTable / COMPONENT / D12830
D12830 ✓ 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

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: OIL LUBRICATING LUBRICATION, end_style: SPRING END,GROUND BOTH ENDS, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.2500 INCHES NOMINAL IN, hole_diameter: 0.2500 INCHES NOMINAL FIRST IN, overall_length: 2.8750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-430-9196, 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
D12830
NSN: 3120-00-430-9196
FSC: 3120
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialOIL LUBRICATING LUBRICATION
end_styleSPRING END,GROUND BOTH ENDS
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.2500 INCHES NOMINAL IN
hole_diameter0.2500 INCHES NOMINAL FIRST IN
overall_length2.8750 INCHES NOMINAL IN
stock_thickness0.079 INCHES NOMINAL IN
special_featuresLOAD LENGTH: 1.724 LBS;LOAD: 28.660 LBS;SPRING RATE: 4.70 LBS LBS
style_designatorCYLINDRICAL
spring_free_length7.677 INCHES NOMINAL IN
spring_solid_length1.142 INCHES NOMINAL IN
body_inside_diameter2.9990 INCHES MINIMUM AND 3.0060 INCHES MAXIMUM IN
NSN3120-00-430-9196
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: D12830 · 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: 2.9990 INCHES MINIMUM AND 3.0060 INCHES MAXIMUM IN
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 6 HOLE
•
FLANGE WIDTH: 0.2500 INCHES NOMINAL IN
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
CORNER SHAPE: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-11773 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER2.9990 INCHES MINIMUM AND 3.0060 INCHES MAXIMUM IN
OVERALL LENGTH2.8750 INCHES NOMINAL IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY6 HOLE
FLANGE WIDTH0.2500 INCHES NOMINAL IN
MATERIALOIL LUBRICATING LUBRICATION
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-11773 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
12830Interchangeable
interchangeable cross-reference
interchangeable
RFN30SAInterchangeable
interchangeable cross-reference
interchangeable
NC4234Interchangeable
interchangeable cross-reference
interchangeable
91107AInterchangeable
interchangeable cross-reference
interchangeable
87077Interchangeable
interchangeable cross-reference
interchangeable
G2106D007-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D12830?
D12830 is a BEARING,SLEEVE.
What parts can replace D12830?
There are 13 known substitutes for D12830: 12830, RFN30SA, NC4234 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D12830?
D12830 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-430-9196. 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