The Bushing,sleeve, cataloged under National Stock Number 3120-01-271-1808, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is All Power Manufacturing Co.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-271-1808 |
| Primary Part Number | 4M46-12-18 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | All Power Manufacturing Co. |
| Status | ACTIVE |
| Body Outside Diameter | 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OR STEEL COMP 8630 OUTER LAYER |
| 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 |
|---|---|
| 4M46-12-18 PRIMARY | All Power Manufacturing Co. (USA) |
| 4M46-12-18 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 4M46-12-18 PRIMARY | Avalon Machine Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 4M46-12-18 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 3120-01-271-1808 is a Bushing,sleeve, manufactured by All Power Manufacturing Co., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-271-1808 has 3 manufacturer part numbers on file: 4M46-12-18 (All Power Manufacturing Co.), 4M46-12-18 (Reid Products Inc. Dba Reid Products Inc), 4M46-12-18 (Avalon Machine Products Inc).
Key specifications for 4M46-12-18: Body Outside Diameter: 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN; Overall Length: 0.5620 INCHES MINIMUM AND 0.5720 INCHES MAXIMUM IN; Body Inside Diameter: 0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN; Material: STEEL COMP 4130 OR STEEL COMP 8630 OUTER LAYER. 3 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.