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Technical Data Sheet
PartsTable / COMPONENT / 54A50A38
54A50A38 ✓ 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,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 0.2570 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, surface_finish: 100.0 MICROINCHES OVERALL, outside_diameter: 0.4850 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN, style_designator: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-071-8738, 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
54A50A38
NSN: 3120-00-071-8738
FSC: 3120
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.2570 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
surface_finish100.0 MICROINCHES OVERALL
outside_diameter0.4850 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN
style_designatorROUND
overall_thickness0.0560 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-00-071-8738
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 54A50A38 · 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: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: ROUND
•
SURFACE FINISH: 100.0 MICROINCHES OVERALL
•
OUTSIDE DIAMETER: 0.4850 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL THICKNESS: 0.0560 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORROUND
MATERIALOIL LUBRICATING LUBRICATION
SURFACE FINISH100.0 MICROINCHES OVERALL
OUTSIDE DIAMETER0.4850 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
OVERALL THICKNESS0.0560 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.2570 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
19528Interchangeable
interchangeable cross-reference
interchangeable
150WB120VInterchangeable
interchangeable cross-reference
interchangeable
150/WB 120VInterchangeable
interchangeable cross-reference
interchangeable
19532Interchangeable
interchangeable cross-reference
interchangeable
29111PInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 54A50A38?
54A50A38 is a BEARING,WASHER,THRUST.
What parts can replace 54A50A38?
There are 5 known substitutes for 54A50A38: 19528, 150WB120V, 150/WB 120V and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 54A50A38?
54A50A38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-071-8738. 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