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B135915 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

B135915: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 0.7500 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, outside_diameter: 2.5000 INCHES NOMINAL IN, style_designator: ROUND, overall_thickness: 0.2260 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-970-7550, 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
B135915
NSN: 3120-00-970-7550
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 53591 — SCHWITZER ENGINE COMPONENTS A HOUSEHOLD INTL CO (USA)
SPECIFICATIONS
diameter0.7500 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
outside_diameter2.5000 INCHES NOMINAL IN
style_designatorROUND
overall_thickness0.2260 INCHES NOMINAL IN
lubrication_featureGROOVE FLAT BEARING SURFACE
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-00-970-7550
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B135915 · 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: 0.2260 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND
•
DIAMETER: 0.7500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 2.5000 INCHES NOMINAL IN
•
LUBRICATION FEATURE: GROOVE FLAT BEARING SURFACE
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
OVERALL THICKNESS0.2260 INCHES NOMINAL IN
STYLE DESIGNATORROUND
DIAMETER0.7500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER2.5000 INCHES NOMINAL IN
LUBRICATION FEATUREGROOVE FLAT BEARING SURFACE
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES 1
7M9922Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B135915?
B135915 is a BEARING,WASHER,THRUST.
What parts can replace B135915?
There is 1 known substitute for B135915: 7M9922. Substitute compatibility should be verified for your specific system.
What is the NSN for B135915?
B135915 is cataloged in the U.S. Government catalog under NSN 3120-00-970-7550. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.