The Bushing,sleeve, cataloged under National Stock Number 3120-01-033-2768, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Control Flow, Inc. Dba Control Flow Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-033-2768 |
| Primary Part Number | B301457 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Control Flow, Inc. Dba Control Flow Inc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 5.5010 INCHES MINIMUM AND 5.5020 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 4.7520 INCHES MINIMUM AND 4.7550 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED CIRCULAR AND GROOVED OPEN ONE END |
| Antirotation/lubrication Type and Quantity | 2 HOLE |
| Material | COPPER ALLOY 937 OVERALL |
| Surface Groove Location and Quantity | 2 INTERNAL AND 1 EXTERNAL |
| Hole Diameter | 0.1250 INCHES NOMINAL FIRST IN |
| 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 |
|---|---|
| B301457 PRIMARY | Control Flow, Inc. Dba Control Flow Inc (USA) |
| Reference | Meaning |
|---|---|
| B301457 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
| PLD301087PC14 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 3120-01-033-2768 is a Bushing,sleeve, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-033-2768 has 1 manufacturer part number on file: B301457 (Control Flow, Inc. Dba Control Flow Inc).
Key specifications for B301457: Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 5.5010 INCHES MINIMUM AND 5.5020 INCHES MAXIMUM IN. 11 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.