The Bushing,sleeve, cataloged under National Stock Number 3120-01-339-2115, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Fastener Technology Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-339-2115 |
| Primary Part Number | FT4001-3-21C |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Fastener Technology Corp |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OVERALL |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 0.3923 INCHES NOMINAL IN |
| Body Outside Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN |
| Flange Width | 0.0600 INCHES NOMINAL IN |
| Material | STEEL 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 |
|---|---|
| FT4001-3-21C PRIMARY | Fastener Technology Corp (USA) |
| Reference | Meaning |
|---|---|
| 3120-006C3-21 | 5/9 Secondary reference Aidc/aerospace Industrial Development Corp. Dba Aidc |
NSN 3120-01-339-2115 is a Bushing,sleeve, manufactured by Fastener Technology Corp, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-339-2115 has 1 manufacturer part number on file: FT4001-3-21C (Fastener Technology Corp).
Key specifications for FT4001-3-21C: Surface Finish: 125.0 MICROINCHES OVERALL; Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 0.3923 INCHES NOMINAL IN; Body Outside Diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. 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.