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4M374BC4-030 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

4M374BC4-030: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 172 OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.0600 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN, overall_length: 0.2950 INCHES MINIMUM AND 0.3000 INCHES MAXIMUM IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, surface_treatment: COPPER ALLOY OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-481-9452, 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
4M374BC4-030
NSN: 3120-01-481-9452
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 172 OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.0600 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
overall_length0.2950 INCHES MINIMUM AND 0.3000 INCHES MAXIMUM IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentCOPPER ALLOY OVERALL
body_inside_diameter0.2415 INCHES MINIMUM AND 0.2430 INCHES MAXIMUM IN
body_outside_diameter0.3732 INCHES MINIMUM AND 0.3737 INCHES MAXIMUM IN
end_item_identificationF18 E/F
flange_outside_diameter0.4950 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
criticality_code_justificationAGAV
material_document_and_classificationASTM B196 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-481-9452
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4M374BC4-030 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FLANGE OUTSIDE DIAMETER: 0.4950 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.3732 INCHES MINIMUM AND 0.3737 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B196 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
FLANGE OUTSIDE DIAMETER0.4950 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.3732 INCHES MINIMUM AND 0.3737 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONAGAV
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B196 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.2950 INCHES MINIMUM AND 0.3000 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.2415 INCHES MINIMUM AND 0.2430 INCHES MAXIMUM IN
SURFACE TREATMENTCOPPER ALLOY OVERALL
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4M374BC4-030?
4M374BC4-030 is a BUSHING,SLEEVE.
What is the NSN for 4M374BC4-030?
4M374BC4-030 is cataloged in the U.S. Government catalog under NSN 3120-01-481-9452. 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.