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Technical Data Sheet
PartsTable / COMPONENT / AAB519-3
AAB519-3 ✓ 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

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN, special_features: NOMINAL DIMENSIONS: INTERNAL DIAMETER .252",OUTSIDE DIAMETER .5015", LENGTH: 1", style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, storage_temp_range: -65.0 TO 275.0 FAHRENHEIT DEGF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-116-1287, 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
AAB519-3
NSN: 3120-00-116-1287
FSC: 3120
CAGE: 4T3X6 — BUNTING BEARINGS LLC DBA BUNTING BEARINGS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
special_featuresNOMINAL DIMENSIONS: INTERNAL DIAMETER .252",OUTSIDE DIAMETER .5015", LENGTH: 1"
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
storage_temp_range-65.0 TO 275.0 FAHRENHEIT DEGF
body_inside_diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
body_outside_diameter0.5005 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
special_test_featuresSLEEVE BEARING
specification/standard_data96906-DOD-STD-100 GOVERNMENT STANDARD
material_document_and_classificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-116-1287
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: AAB519-3 · 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
•
BODY OUTSIDE DIAMETER: 0.5005 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STORAGE TEMP RANGE: -65.0 TO 275.0 FAHRENHEIT DEGF
•
MATERIAL: COPPER ALLOY OVERALL
•
SPECIFICATION/STANDARD DATA: 96906-DOD-STD-100 GOVERNMENT STANDARD
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY INSIDE DIAMETER: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.5005 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STORAGE TEMP RANGE-65.0 TO 275.0 FAHRENHEIT DEGF
OVERALL LENGTH0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
SPECIFICATION/STANDARD DATA96906-DOD-STD-100 GOVERNMENT STANDARD
CORNER SHAPESQUARE ALL CORNERS
BODY INSIDE DIAMETER0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
SPECIAL TEST FEATURESSLEEVE BEARING
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
50058-3Interchangeable
interchangeable cross-reference
interchangeable
7233-61-0Interchangeable
interchangeable cross-reference
interchangeable
502-239Interchangeable
interchangeable cross-reference
interchangeable
7200-203XInterchangeable
interchangeable cross-reference
interchangeable
31-0604-01-4PC28Interchangeable
interchangeable cross-reference
interchangeable
500-195Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AAB519-3?
AAB519-3 is a RESISTOR,VARIABLE,WIRE WOUND,PRE.
What parts can replace AAB519-3?
There are 8 known substitutes for AAB519-3: 50058-3, 7233-61-0, 502-239 and 5 more. Substitute compatibility should be verified for your specific system.
Is AAB519-3 still available?
AAB519-3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026