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4M46-12-18 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

4M46-12-18: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OUTER LAYER, overall_length: 0.5620 INCHES MINIMUM AND 0.5720 INCHES MAXIMUM IN, body_inside_diameter: 0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN, body_outside_diameter: 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-271-1808, 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
4M46-12-18
NSN: 3120-01-271-1808
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 70265 — ALL POWER MANUFACTURING CO. (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OUTER LAYER
overall_length0.5620 INCHES MINIMUM AND 0.5720 INCHES MAXIMUM IN
body_inside_diameter0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN
body_outside_diameter0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN
NSN3120-01-271-1808
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4M46-12-18 · 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: 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 4130 OR STEEL COMP 8630 OUTER LAYER
TECHNICAL CHARACTERISTICS
BODY OUTSIDE DIAMETER0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN
OVERALL LENGTH0.5620 INCHES MINIMUM AND 0.5720 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OUTER LAYER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4M46-12-18?
4M46-12-18 is a BUSHING,SLEEVE.
What is the NSN for 4M46-12-18?
4M46-12-18 is cataloged in the U.S. Government catalog under NSN 3120-01-271-1808. 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.