PartsTable
Technical Data Sheet
PartsTable / COMPONENT / TWS1
TWS1 ✓ 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: 0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN, material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, outside_diameter: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN, style_designator: ROUND, overall_thickness: 0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-6191, 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
TWS1
NSN: 3120-00-661-6191
FSC: 3120
CAGE: 71366 — BUNTING BEARINGS CORP (USA)
SPECIFICATIONS
diameter0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
outside_diameter0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
style_designatorROUND
overall_thickness0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-00-661-6191
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: TWS1 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: LUBRICANT LUBRICATION
•
STYLE DESIGNATOR: ROUND
•
CORNER SHAPE: SQUARE ALL CORNERS
•
OVERALL THICKNESS: 0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
DIAMETER: 0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIALLUBRICANT LUBRICATION
STYLE DESIGNATORROUND
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY OVERALL
OVERALL THICKNESS0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
431-13Interchangeable
interchangeable cross-reference
interchangeable
T1-0001Interchangeable
interchangeable cross-reference
interchangeable
531249Interchangeable
interchangeable cross-reference
interchangeable
ST5M1300-001Interchangeable
interchangeable cross-reference
interchangeable
7029370Interchangeable
interchangeable cross-reference
interchangeable
1887Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy TWS1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is TWS1?
TWS1 is a BEARING,WASHER,THRUST.
What parts can replace TWS1?
There are 28 known substitutes for TWS1: 431-13, T1-0001, 531249 and 25 more. Substitute compatibility should be verified for your specific system.
Is TWS1 still available?
TWS1 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — TWS1

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026