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157D1-0723 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

157D1-0723: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.0625 INCHES NOMINAL FIRST IN, overall_length: 1.8680 INCHES MINIMUM AND 1.8690 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 4.2500 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-661-8890, 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
157D1-0723
NSN: 3120-00-661-8890
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 75377 — KURZ & ROOT GENERATOR COMPANY, LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
hole_diameter0.0625 INCHES NOMINAL FIRST IN
overall_length1.8680 INCHES MINIMUM AND 1.8690 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter4.2500 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN
body_outside_diameter4.4960 INCHES MINIMUM AND 4.4970 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED CIRCULAR
surface_groove_location_and_quantity1 INTERNAL
antirotation/lubrication_type_and_quantity6 HOLE
NSN3120-00-661-8890
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 157D1-0723 · 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
•
BODY OUTSIDE DIAMETER: 4.4960 INCHES MINIMUM AND 4.4970 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 4.2500 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN
•
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 6 HOLE
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER4.4960 INCHES MINIMUM AND 4.4970 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.8680 INCHES MINIMUM AND 1.8690 INCHES MAXIMUM IN
BODY INSIDE DIAMETER4.2500 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
ANTIROTATION/LUBRICATION TYPE AND QUANTITY6 HOLE
MATERIALALUMINUM ALLOY OVERALL
SURFACE GROOVE LOCATION AND QUANTITY1 INTERNAL
HOLE DIAMETER0.0625 INCHES NOMINAL FIRST IN
SUBSTITUTES & CROSS-REFERENCES 2
10325610Reference document
Same NSN cross-reference
Reference document — Informative reference only
16980Reference 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 157D1-0723?
157D1-0723 is a BEARING,SLEEVE.
What parts can replace 157D1-0723?
There are 2 known substitutes for 157D1-0723: 10325610, 16980. Substitute compatibility should be verified for your specific system.
What is the NSN for 157D1-0723?
157D1-0723 is cataloged in the U.S. Government catalog under NSN 3120-00-661-8890. 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.