PartsTable
Technical Data Sheet
PartsTable / COMPONENT / M1620-8
M1620-8 ✓ 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 SHAFT ASSEMBLY,FLEXIBLE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 932 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.9990 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-810-7610, 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
M1620-8
NSN: 3120-00-810-7610
FSC: 3120
CAGE: 71041 — ALTRA INDUSTRIAL MOTION CORP. (USA)
SPECIFICATIONS
materialCOPPER ALLOY 932 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.9990 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN
body_outside_diameter1.2520 INCHES MINIMUM AND 1.2530 INCHES MAXIMUM IN
NSN3120-00-810-7610
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: M1620-8 · 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
•
BODY OUTSIDE DIAMETER: 1.2520 INCHES MINIMUM AND 1.2530 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
SURFACE FINISH: 63.0 MICROINCHES CORE
•
MATERIAL: COPPER ALLOY 932 OVERALL
•
BODY INSIDE DIAMETER: 0.9990 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER1.2520 INCHES MINIMUM AND 1.2530 INCHES MAXIMUM IN
OVERALL LENGTH0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPESQUARE ALL CORNERS
SURFACE FINISH63.0 MICROINCHES CORE
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
MATERIALCOPPER ALLOY 932 OVERALL
BODY INSIDE DIAMETER0.9990 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
24GPSTYLEEGInterchangeable
interchangeable cross-reference
interchangeable
H164STYLE6GInterchangeable
interchangeable cross-reference
interchangeable
CB1620-08Interchangeable
interchangeable cross-reference
interchangeable
CB1620-8Interchangeable
interchangeable cross-reference
interchangeable
212-070-493-003Interchangeable
interchangeable cross-reference
interchangeable
212-070-493-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1620-8?
M1620-8 is a SHAFT ASSEMBLY,FLEXIBLE.
What parts can replace M1620-8?
There are 31 known substitutes for M1620-8: 24GPSTYLEEG, H164STYLE6G, CB1620-08 and 28 more. Substitute compatibility should be verified for your specific system.
Is M1620-8 still available?
M1620-8 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