The Bushing,sleeve, cataloged under National Stock Number 3120-01-557-4331, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-557-4331 |
| Primary Part Number | 11E421057 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center |
| Status | ACTIVE |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11E421057 PRIMARY | Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center (USA) |
| Reference | Meaning |
|---|---|
| RIA149554 | 5/9 Secondary reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
NSN 3120-01-557-4331 is a Bushing,sleeve, manufactured by Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-557-4331 has 1 manufacturer part number on file: 11E421057 (Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center).
Key specifications for 11E421057: Flange Outside Diameter: 0.8800 INCHES NOMINAL IN; Body Outside Diameter: 0.6100 INCHES NOMINAL IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Overall Length: 0.7500 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.