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Technical Data Sheet
PartsTable / COMPONENT / KNDB5-3
KNDB5-3 ✓ 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,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OUTER RACE MEMBER, bore_diameter: 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER, style_designator: WITH INSERT AND/OR LINER, surface_treatment: PASSIVATE INNER MEMBER, inner_member_width: 0.3730 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-099-7316, 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
KNDB5-3
NSN: 3120-01-099-7316
FSC: 3120
CAGE: 97613 — SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OUTER RACE MEMBER
bore_diameter0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
style_designatorWITH INSERT AND/OR LINER
surface_treatmentPASSIVATE INNER MEMBER
inner_member_width0.3730 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
outer_member_width0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
static_radial_load_rating8750 POUNDS LBS
outer_member_outside_diameter0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
NSN3120-01-099-7316
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: KNDB5-3 · 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
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
•
STATIC RADIAL LOAD RATING: 8750 POUNDS LBS
•
SURFACE TREATMENT: PASSIVATE INNER MEMBER
•
STYLE DESIGNATOR: WITH INSERT AND/OR LINER
•
BORE DIAMETER: 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
•
INNER MEMBER WIDTH: 0.3730 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
STATIC RADIAL LOAD RATING8750 POUNDS LBS
SURFACE TREATMENTPASSIVATE INNER MEMBER
MATERIALSTEEL COMP 630 OUTER RACE MEMBER
STYLE DESIGNATORWITH INSERT AND/OR LINER
MATERIALSTEEL COMP 440C INSIDE DIAMETER SURFACE OF BODY
BORE DIAMETER0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.3730 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
OUTER MEMBER OUTSIDE DIAMETER0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
MS14104-4Interchangeable
interchangeable cross-reference
interchangeable
10173444Interchangeable
interchangeable cross-reference
interchangeable
AS14104Interchangeable
interchangeable cross-reference
interchangeable
NAS77Interchangeable
interchangeable cross-reference
interchangeable
NAS77-6-020Interchangeable
interchangeable cross-reference
interchangeable
KR10-CNGBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KNDB5-3?
KNDB5-3 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace KNDB5-3?
There are 26 known substitutes for KNDB5-3: MS14104-4, 10173444, AS14104 and 23 more. Substitute compatibility should be verified for your specific system.
Is KNDB5-3 still available?
KNDB5-3 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026