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Technical Data Sheet
PartsTable / COMPONENT / LST491S2600-270520PC31
LST491S2600-270520PC31 ✓ 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,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 836 OVERALL, corner_shape: CHAMFERED ALL CORNERS, overall_length: 3.5000 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 14.5240 INCHES MINIMUM AND 14.5260 INCHES MAXIMUM IN, body_outside_diameter: 15.2560 INCHES MINIMUM AND 15.2580 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-343-7786, 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
LST491S2600-270520PC31
NSN: 3120-00-343-7786
FSC: 3120
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 836 OVERALL
corner_shapeCHAMFERED ALL CORNERS
overall_length3.5000 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter14.5240 INCHES MINIMUM AND 14.5260 INCHES MAXIMUM IN
body_outside_diameter15.2560 INCHES MINIMUM AND 15.2580 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED OPEN ONE END
material_document_and_classificationMIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_groove_location_and_quantity4 INTERNAL
NSN3120-00-343-7786
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: LST491S2600-270520PC31 · 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
•
LUBRICANT ACCOMMODATION STYLE: GROOVED OPEN ONE END
•
BODY OUTSIDE DIAMETER: 15.2560 INCHES MINIMUM AND 15.2580 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 14.5240 INCHES MINIMUM AND 14.5260 INCHES MAXIMUM IN
•
SURFACE GROOVE LOCATION AND QUANTITY: 4 INTERNAL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY 836 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICANT ACCOMMODATION STYLEGROOVED OPEN ONE END
OVERALL LENGTH3.5000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER15.2560 INCHES MINIMUM AND 15.2580 INCHES MAXIMUM IN
BODY INSIDE DIAMETER14.5240 INCHES MINIMUM AND 14.5260 INCHES MAXIMUM IN
SURFACE GROOVE LOCATION AND QUANTITY4 INTERNAL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 836 OVERALL
CORNER SHAPECHAMFERED ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
8037Interchangeable
interchangeable cross-reference
interchangeable
9975112-4Interchangeable
interchangeable cross-reference
interchangeable
002074Interchangeable
interchangeable cross-reference
interchangeable
SM-D-414465Interchangeable
interchangeable cross-reference
interchangeable
5999000897995Interchangeable
interchangeable cross-reference
interchangeable
080374Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LST491S2600-270520PC31?
LST491S2600-270520PC31 is a BEARING,SLEEVE.
What parts can replace LST491S2600-270520PC31?
There are 26 known substitutes for LST491S2600-270520PC31: 8037, 9975112-4, 002074 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LST491S2600-270520PC31?
LST491S2600-270520PC31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-343-7786. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026