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11E421057 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

11E421057: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_width: 0.0600 INCHES NOMINAL IN, overall_length: 0.7500 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.3120 INCHES NOMINAL IN, body_outside_diameter: 0.6100 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-557-4331, 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
11E421057
NSN: 3120-01-557-4331
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 59678 — COMBAT CAPABILITIES DEVELOPMENT COMMAND ARMAMENTS CENTER DBA US ARMY COMBAT CAPABILITIES DEVELOPMENT COMMAND ARMAMENTS CENTER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_width0.0600 INCHES NOMINAL IN
overall_length0.7500 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.3120 INCHES NOMINAL IN
body_outside_diameter0.6100 INCHES NOMINAL IN
flange_outside_diameter0.8800 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyGATE STUD
NSN3120-01-557-4331
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 11E421057 · 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
•
FLANGE OUTSIDE DIAMETER: 0.8800 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.6100 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
BODY INSIDE DIAMETER: 0.3120 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.0600 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FLANGE OUTSIDE DIAMETER0.8800 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.6100 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH0.7500 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.3120 INCHES NOMINAL IN
FLANGE WIDTH0.0600 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGATE STUD
MATERIALSTEEL 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 1
RIA149554Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 11E421057?
11E421057 is a BUSHING,SLEEVE.
What parts can replace 11E421057?
There is 1 known substitute for 11E421057: RIA149554. Substitute compatibility should be verified for your specific system.
What is the NSN for 11E421057?
11E421057 is cataloged in the U.S. Government catalog under NSN 3120-01-557-4331. 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.