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Technical Data Sheet
PartsTable / COMPONENT / 54A50A106
54A50A106 ✓ 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 BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN, surface_finish: 100.0 MICROINCHES INTERMEDIATE LAYER, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-012-0138, 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
54A50A106
NSN: 3120-00-012-0138
FSC: 3120
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
surface_finish100.0 MICROINCHES INTERMEDIATE LAYER
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM IN
body_outside_diameter0.6870 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN
NSN3120-00-012-0138
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 54A50A106 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
SURFACE TREATMENT: CADMIUM OVERALL
•
SURFACE FINISH: 100.0 MICROINCHES INTERMEDIATE LAYER
•
BODY INSIDE DIAMETER: 0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.6870 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
SURFACE TREATMENTCADMIUM OVERALL
SURFACE FINISH100.0 MICROINCHES INTERMEDIATE LAYER
BODY INSIDE DIAMETER0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6870 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
21893Interchangeable
interchangeable cross-reference
interchangeable
2811-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 54A50A106?
54A50A106 is a BUSHING,SLEEVE.
What parts can replace 54A50A106?
There are 2 known substitutes for 54A50A106: 21893, 2811-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 54A50A106?
54A50A106 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-012-0138. 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