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Technical Data Sheet
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127056 — Technical Data Sheet

✓ 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 WINDOW ASSEMBLY,TURRET is a the manufacturer industrial component. Key specifications include terminal_commercial_and_government_entity_code: 44D61 FIRST END ALL CONDUCTORS, terminal_manufacturer_identifying_reference_number: 127056 FIRST END ALL CONDUCTORS. This part is cataloged in the Federal Logistics Information System under NSN 3120-00-545-3708, 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
127056
NSN: 3120-00-545-3708
FSC: 3120
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
terminal_commercial_and_government_entity_code44D61 FIRST END ALL CONDUCTORS
terminal_manufacturer_identifying_reference_number127056 FIRST END ALL CONDUCTORS
NSN3120-00-545-3708
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 127056 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 3.7500 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OVERALL
•
LUBRICATION FEATURE: GROOVE FLAT BEARING SURFACE
•
BEARING SURFACE HOLE DIAMETER: 0.2500 INCHES NOMINAL FIRST IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BEARING SURFACE HOLE QUANTITY: 4 FIRST
•
STYLE DESIGNATOR: ROUND
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER3.7500 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OVERALL
LUBRICATION FEATUREGROOVE FLAT BEARING SURFACE
BEARING SURFACE HOLE DIAMETER0.2500 INCHES NOMINAL FIRST IN
CORNER SHAPESQUARE ALL CORNERS
BEARING SURFACE HOLE QUANTITY4 FIRST
STYLE DESIGNATORROUND
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER2.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
06000279InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7300-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RA20679InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AP46InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A46InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
254InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 127056?
127056 is a WINDOW ASSEMBLY,TURRET.
What parts can replace 127056?
There are 20 known substitutes for 127056: 06000279, 7300-4, RA20679 and 17 more. Substitute compatibility should be verified for your specific system.
Is 127056 still available?
127056 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: September 2026