The Vacuum Pump,rotary, cataloged under National Stock Number 4310-01-061-2899, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Central Scientific Co Educational. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4310-01-061-2899 |
| Primary Part Number | 91955-112 |
| Item Name | Vacuum Pump,rotary |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Central Scientific Co Educational |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | SLIDING VANE |
| Vacuum Rating | 50.0 MICROTORR |
| Stage Quantity | 2 |
| Operating Speed at Rated Capacity in RPM | 550.0 |
| Vapor Condensation Preventative Device | GAS BALLAST VALVING |
| Intake Connection Quantity | 1 |
| System Design | NONCORROSIVE |
| 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 |
|---|---|
| 91955-112 PRIMARY | Central Scientific Co Educational (USA) |
| Reference | Meaning |
|---|---|
| HYVAC 45 | 5/1 Secondary reference Central Scientific Co Educational |
NSN 4310-01-061-2899 is a Vacuum Pump,rotary, manufactured by Central Scientific Co Educational, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-061-2899 has 1 manufacturer part number on file: 91955-112 (Central Scientific Co Educational).
Key specifications for 91955-112: Discharge Connection Quantity: 1; Pumping Element Type: SLIDING VANE; Vacuum Rating: 50.0 MICROTORR; Stage Quantity: 2. 8 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.