PartsTable
Technical Data Sheet
A/40 ✓ 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 A/40 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-437-8079, 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
A/40
NSN: 3120-01-437-8079
FSC: 3120
CAGE: 50064 — O. E. M. CONTROLS, INC. DBA OEM CONTROLS INC (USA)
SPECIFICATIONS
Part NumberA/40
NSN3120-01-437-8079
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: A/40 · 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 25
EPIBOND 123/931Interchangeable
interchangeable cross-reference
interchangeable
8040PL0665992Interchangeable
interchangeable cross-reference
interchangeable
A-1216-BInterchangeable
interchangeable cross-reference
interchangeable
023875Interchangeable
interchangeable cross-reference
interchangeable
56VA040SInterchangeable
interchangeable cross-reference
interchangeable
1A109Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A/40?
A/40 is a A/40.
What parts can replace A/40?
There are 25 known substitutes for A/40: EPIBOND 123/931, 8040PL0665992, A-1216-B and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A/40?
A/40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-437-8079. This indicates validated use in U.S. government and defense supply chains.
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