The Vacuum Pump Unit,rotary, cataloged under National Stock Number 4310-01-448-6766, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4310-01-448-6766 |
| Primary Part Number | D40B |
| Item Name | Vacuum Pump Unit,rotary |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Leybold Usa Inc. |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | THREE |
| Pumping Element Type | ROTARY VANE |
| Intake Connection Type | FLANGED |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Vacuum Rating | 0.0001 TORR |
| Voltage in Volts | 200.0 AND 230.0 AND 460.0 |
| Pump Quantity | 1 |
| Discharge Connection Flange Shape Style | ROUND |
| Air Displacement Rate | 32.5 CUBIC FEET PER MINUTE IN FREE AIR |
| Operating Speed at Rated Capacity in RPM | 1800.0 |
| Vapor Condensation Preventative Device | GAS BALLAST VALVING |
| Intake Connection Flange Shape Style | ROUND |
| Discharge Connection Type | FLANGED |
| Intake Connection Quantity | 1 |
| System Design | NONCORROSIVE |
| Prime Mover Type | ELECTRIC MOTOR |
| Cooling Medium | AIR |
| Mounting Type | BASE |
| Current Rating in Amps | 6.46 AND 5.62 AND 2.81 |
| 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 |
|---|---|
| D40B PRIMARY | Leybold Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| D40B | 3/9 Design control — primary reference Leybold Vacuum Products Inc |
| D60A | 5/9 Secondary reference Leybold Vacuum Products Inc |
NSN 4310-01-448-6766 is a Vacuum Pump Unit,rotary, manufactured by Leybold Usa Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-448-6766 has 1 manufacturer part number on file: D40B (Leybold Usa Inc.).
Key specifications for D40B: Discharge Connection Quantity: 1; Overall Height: 14.000 INCHES NOMINAL IN; Phase: THREE; Pumping Element Type: ROTARY VANE. 21 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.