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Technical Data Sheet
PartsTable / COMPONENT / M31137561
M31137561 ✓ 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,WASHER,THRUST is a the manufacturer industrial component. Key specifications include material: GLASS WINDOW, frame_type: ONE PIECE, end_item_identification: 3810-00-948-0407. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-284-3773, 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
M31137561
NSN: 3120-01-284-3773
FSC: 3120
CAGE: 44185 — TLD WOLLARD LLC (USA)
SPECIFICATIONS
materialGLASS WINDOW
frame_typeONE PIECE
pane_quantity1
end_item_identification3810-00-948-0407
NSN3120-01-284-3773
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: M31137561 · 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 8
MD74002-191Interchangeable
interchangeable cross-reference
interchangeable
3290-91Interchangeable
interchangeable cross-reference
interchangeable
4075191Interchangeable
interchangeable cross-reference
interchangeable
1395170Interchangeable
interchangeable cross-reference
interchangeable
MG207FFQV1Interchangeable
interchangeable cross-reference
interchangeable
VH 38398Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M31137561?
M31137561 is a BEARING,WASHER,THRUST.
What parts can replace M31137561?
There are 8 known substitutes for M31137561: MD74002-191, 3290-91, 4075191 and 5 more. Substitute compatibility should be verified for your specific system.
Is M31137561 still available?
M31137561 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: July 2026