The Bearing,sleeve, cataloged under National Stock Number 3120-01-265-6403, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-265-6403 |
| Primary Part Number | 270AS159 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 4.3060 INCHES MINIMUM AND 4.3090 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | QQ-C-390,TY 1 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Body Inside Diameter | 3.5400 INCHES MINIMUM AND 3.5430 INCHES MAXIMUM IN |
| Antirotation/lubrication Type and Quantity | 2 HOLE |
| Material | COPPER ALLOY 952 OR COPPER ALLOY 953 OR COPPER ALLOY 954 OR COPPER ALLOY 955 OR COPPER ALLOY 956 OR COPPER ALLOY 957 OR COPPER ALLOY 958 OVERALL |
| Material | OIL LUBRICATING OR GREASE LUBRICATION |
| Hole Diameter | 0.6562 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 |
|---|---|
| 270AS159 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 270AS159 | 5/9 Secondary reference Superior Companies, Inc. Dba Supco |
NSN 3120-01-265-6403 is a Bearing,sleeve, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-265-6403 has 1 manufacturer part number on file: 270AS159 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 270AS159: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 4.3060 INCHES MINIMUM AND 4.3090 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: QQ-C-390,TY 1 FED SPEC ALL MATERIAL RESPONSES OVERALL. 9 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.