The Bushing,sleeve, cataloged under National Stock Number 3120-01-033-1640, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is The Boeing Company Div Commercial. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-033-1640 |
| Primary Part Number | 69-16279-1 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE |
| Surface Finish | 125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE |
| Surface Finish | 64.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE |
| Corner Shape | CHAMFERED INSIDE LEFT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Corner Shape | ROUND LEFT FLANGE BODY CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Flange Outside Diameter | 5.2500 INCHES NOMINAL IN |
| Body Outside Diameter | 4.8940 INCHES MINIMUM AND 4.8950 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 4.2450 INCHES MINIMUM AND 4.2500 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED CLOSED BOTH ENDS AND GROOVED CIRCULAR |
| Surface Treatment | CADMIUM OUTSIDE DIAMETER SURFACE OF FLANGE |
| Surface Treatment | CADMIUM LEFT END SURFACE OF BODY AND FLANGE |
| Surface Treatment | CADMIUM RIGHT END SURFACE OF BODY |
| Surface Treatment | CADMIUM OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Treatment | CADMIUM RIGHT END SURFACE OF LEFT FLANGE |
| Antirotation/lubrication Type and Quantity | 4 HOLE |
| Flange Width | 0.1300 INCHES NOMINAL IN |
| Material | COPPER ALLOY 630 OVERALL |
| Surface Groove Location and Quantity | 4 INTERNAL AND 1 EXTERNAL |
| Hole Diameter | 0.1200 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 |
|---|---|
| 69-16279-1 PRIMARY | The Boeing Company Div Commercial (USA) |
| Reference | Meaning |
|---|---|
| 69-16279-1 | 5/9 Secondary reference U.S. Government activity |
NSN 3120-01-033-1640 is a Bushing,sleeve, manufactured by The Boeing Company Div Commercial, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-033-1640 has 1 manufacturer part number on file: 69-16279-1 (The Boeing Company Div Commercial).
Key specifications for 69-16279-1: Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE; Surface Finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE; Surface Finish: 64.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY. 28 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.