The Vacuum Pump Unit,rotary, cataloged under National Stock Number 4310-01-320-6012, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Leybold Usa Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-320-6012 |
| Primary Part Number | D2.5E |
| Item Name | Vacuum Pump Unit,rotary |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Leybold Usa Inc. |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | ANY ACCEPTABLE |
| Drive Connection Type | CLOSE COUPLED |
| Pump Quantity | 1 |
| Air Displacement Rate | 2.2 CUBIC FEET PER MINUTE IN FREE AIR |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 1725.0 |
| Vapor Condensation Preventative Device | GAS BALLAST VALVING |
| Intake Connection Quantity | 1 |
| System Design | NONCORROSIVE |
| Prime Mover Type | ELECTRIC MOTOR |
| Cooling Medium | ANY ACCEPTABLE |
| Mounting Type | BASE |
| 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 |
|---|---|
| D2.5E PRIMARY | Leybold Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| D2A-898000 | 3/9 Design control — primary reference Leybold Vacuum Products Inc |
| D2A-898000 | 5/9 Secondary reference Leybold Usa Inc. |
NSN 4310-01-320-6012 is a Vacuum Pump Unit,rotary, manufactured by Leybold Usa Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-320-6012 has 1 manufacturer part number on file: D2.5E (Leybold Usa Inc.).
Key specifications for D2.5E: Discharge Connection Quantity: 1; Overall Height: 9.750 INCHES NOMINAL IN; Pumping Element Type: ANY ACCEPTABLE; Drive Connection Type: CLOSE COUPLED. 13 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.