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TW51 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

TW51: BEARING,WASHER,THRUST.

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: LUBRICANT LUBRICATION, 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 U.S.

Government catalog 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
TW51
NSN: 3120-00-661-6191
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 71366 — BUNTING BEARINGS CORP (USA)
SPECIFICATIONS
diameter0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN
materialLUBRICANT LUBRICATION
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: TW51 · 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
•
OVERALL THICKNESS: 0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND
•
DIAMETER: 0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
•
MATERIAL: LUBRICANT LUBRICATION
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
OVERALL THICKNESS0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
STYLE DESIGNATORROUND
DIAMETER0.5085 INCHES MINIMUM AND 0.5115 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
MATERIALLUBRICANT LUBRICATION
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
SUBSTITUTES & CROSS-REFERENCES 9
T1001Reference document
Same NSN cross-reference
Reference document — Secondary reference
TB816Reference document
Same NSN cross-reference
Reference document — Secondary reference
TWS1Reference document
Same NSN cross-reference
Reference document — Secondary reference
88-3131-01Reference document
Same NSN cross-reference
Reference document — Secondary reference
43113Reference document
Same NSN cross-reference
Reference document — Secondary reference
DMS0106-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TW51?
TW51 is a BEARING,WASHER,THRUST.
What parts can replace TW51?
There are 9 known substitutes for TW51: T1001, TB816, TWS1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TW51?
TW51 is cataloged in the U.S. Government catalog under NSN 3120-00-661-6191. This indicates validated use in U.S. government and defense supply chains.
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