The Bushing,sleeve, cataloged under National Stock Number 3120-01-026-6943, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Rotair Aerospace Corp. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-026-6943 |
| Primary Part Number | 540-012-125-7 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Rotair Aerospace Corp |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 4.2406 INCHES MINIMUM AND 4.2416 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 4.1726 INCHES MINIMUM AND 4.1736 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 540-012-125-7 | Rotair Aerospace Corp (USA) |
| 540-012-125-7 | Duncan Industries, Inc (USA) |
| 540-012-125-7 | Aereos, Inc. Dba Euless Aero Components Div Euless Aero Components (USA) |
| Reference | Meaning |
|---|---|
| 540-012-125-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-01-026-6943 is a Bushing,sleeve, manufactured by Rotair Aerospace Corp, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-026-6943 has 3 manufacturer part numbers on file: 540-012-125-7 (Rotair Aerospace Corp), 540-012-125-7 (Duncan Industries, Inc), 540-012-125-7 (Aereos, Inc. Dba Euless Aero Components Div Euless Aero Components).
Key specifications for 540-012-125-7: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 4.2406 INCHES MINIMUM AND 4.2416 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Overall Length: 2.1500 INCHES MINIMUM AND 2.1700 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.