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8AX121 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

8AX121: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: GLASS OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.2550 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN, body_outside_diameter: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-082-9418, 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
8AX121
NSN: 3120-01-082-9418
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialGLASS OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.2550 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN
body_outside_diameter0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
NSN3120-01-082-9418
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 8AX121 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.2550 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN
•
MATERIAL: GLASS OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.2550 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN
MATERIALGLASS OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
79070Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8AX121?
8AX121 is a BUSHING,SLEEVE.
What parts can replace 8AX121?
There is 1 known substitute for 8AX121: 79070. Substitute compatibility should be verified for your specific system.
What is the NSN for 8AX121?
8AX121 is cataloged in the U.S. Government catalog under NSN 3120-01-082-9418. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.