The Bushing,sleeve, cataloged under National Stock Number 3120-01-250-9686, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Reid Products Inc. Dba Reid Products Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3120-01-250-9686 |
| Primary Part Number | 4M139BC6-36 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Reid Products Inc. Dba Reid Products Inc |
| Status | ACTIVE |
| Flange Outside Diameter | 0.6150 INCHES MINIMUM AND 0.6350 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.5016 INCHES MINIMUM AND 0.5023 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.3685 INCHES MINIMUM AND 0.3700 INCHES MAXIMUM IN |
| Flange Width | 0.0600 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 172 OR COPPER ALLOY 173 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 |
|---|---|
| 4M139BC6-36 | All Power Manufacturing Co. (USA) |
| 4M139BC6-36 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 4M139BC6-36 PRIMARY | The Boeing Company Div Defense (USA) |
| 4M139BC6-36 PRIMARY | Mayday Manufacturing Co. (USA) |
| 4M139BC6-36 | Avalon Machine Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 4M139BC6-36 | 5/2 Secondary reference U.S. Government activity |
| 10108259 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 3120-01-250-9686 is a Bushing,sleeve, manufactured by Reid Products Inc. Dba Reid Products Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-250-9686 has 5 manufacturer part numbers on file: 4M139BC6-36 (All Power Manufacturing Co.), 4M139BC6-36 (Reid Products Inc. Dba Reid Products Inc), 4M139BC6-36 (The Boeing Company Div Defense), 4M139BC6-36 (Mayday Manufacturing Co.), 4M139BC6-36 (Avalon Machine Products Inc).
Key specifications for 4M139BC6-36: Flange Outside Diameter: 0.6150 INCHES MINIMUM AND 0.6350 INCHES MAXIMUM IN; Body Outside Diameter: 0.5016 INCHES MINIMUM AND 0.5023 INCHES MAXIMUM IN; Overall Length: 0.4150 INCHES MINIMUM AND 0.4270 INCHES MAXIMUM IN; Body Inside Diameter: 0.3685 INCHES MINIMUM AND 0.3700 INCHES MAXIMUM IN. 5 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.