The Vacuum Pump,diffusion, cataloged under National Stock Number 4310-01-458-4445, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-458-4445 |
| Item Name | Vacuum Pump,diffusion |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Stage Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 40269 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4310-01-458-4445 is a Vacuum Pump,diffusion, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5895-01-462-0027, 6530-01-513-5211. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-01-458-4445: Stage Quantity: 2; Special Features: 115 VOLT; End Item Identification: AC9000 3 ZONE CONTROL UNIT. 1 specification is 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.