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Technical Data Sheet
PartsTable / COMPONENT / A131-20
A131-20 ✓ 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 BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include end_item_identification: 3010-01-315-2992 SPEED DECREASER GEAR ASSEMBLY FOR MAIN DRIVE PROPULSION DIESEL ENGINE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-065-5896, 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
A131-20
NSN: 3120-01-065-5896
FSC: 3120
CAGE: 05457 — BRITISH AEROSPACE NORTH AMERICA INC (USA)
SPECIFICATIONS
end_item_identification3010-01-315-2992 SPEED DECREASER GEAR ASSEMBLY FOR MAIN DRIVE PROPULSION DIESEL ENGINE
NSN3120-01-065-5896
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: A131-20 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
SM-C-182387Interchangeable
interchangeable cross-reference
interchangeable
A7061Interchangeable
interchangeable cross-reference
interchangeable
SM-C-182387 GROUP 5Interchangeable
interchangeable cross-reference
interchangeable
ND90368ITEM2Interchangeable
interchangeable cross-reference
interchangeable
7061Interchangeable
interchangeable cross-reference
interchangeable
X9816FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A131-20?
A131-20 is a BUSHING,SLEEVE.
What parts can replace A131-20?
There are 6 known substitutes for A131-20: SM-C-182387, A7061, SM-C-182387 GROUP 5 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A131-20?
A131-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-065-5896. 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