The Bushing, cataloged under National Stock Number 4120-01-306-9517, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bushing |
| FSC / FSG | 4120 — Air Conditioning Equipment (FSG 41) |
| Parameter | Value |
|---|---|
| NSN | 4120-01-306-9517 |
| Item Name | Bushing |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 121135 | 3/9 Design control — primary reference U.S. Government activity |
| 121135 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
NSN 4120-01-306-9517 is a Bushing, classified under FSC 4120, Air Conditioning Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6117-01-334-9295. Verify interchangeability with system specifications before substitution.
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.