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ST4M166-6-004 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

ST4M166-6-004: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.2550 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, surface_treatment: PASSIVATE OVERALL, body_inside_diameter: 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-345-2147, 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
ST4M166-6-004
NSN: 3120-00-345-2147
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 23294 — AVALON MACHINE PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.2550 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatmentPASSIVATE OVERALL
body_inside_diameter0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
body_outside_diameter0.4985 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-345-2147
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: ST4M166-6-004 · 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: 0.4985 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 630 OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.4985 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.2550 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 630 OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
3120A052-03323Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4M106Reference document
Same NSN cross-reference
Reference document — Secondary reference
10107633Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST4M166-6-004?
ST4M166-6-004 is a BUSHING,SLEEVE.
What parts can replace ST4M166-6-004?
There are 3 known substitutes for ST4M166-6-004: 3120A052-03323, 4M106, 10107633. Substitute compatibility should be verified for your specific system.
What is the NSN for ST4M166-6-004?
ST4M166-6-004 is cataloged in the U.S. Government catalog under NSN 3120-00-345-2147. This indicates validated use in U.S. government and defense supply chains.
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