The Rotor and Shaft Pump Assembly, cataloged under National Stock Number 4320-01-485-6636, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-485-6636 |
| Primary Part Number | 71133S22 |
| Item Name | Rotor and Shaft Pump Assembly |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots |
| Status | ACTIVE |
| Pump Design Control Activity | 51729 |
| Pump Model Number for Which Designed | ROOTS UNIVERSAL RAI |
| 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 |
|---|---|
| 71133S22 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
NSN 4320-01-485-6636 is a Rotor and Shaft Pump Assembly, manufactured by Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-485-6636 has 1 manufacturer part number on file: 71133S22 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots).
Key specifications for 71133S22: Pump Design Control Activity: 51729; Special Features: PART NAME ASSIGNED BY THE CONTROLLING AGENCY IS IMPELLER AND SHAFT-DRIVEN; Pump Model Number for Which Designed: ROOTS UNIVERSAL RAI; End Item Identification: COMPRESSOR UNIT, ROTARY NSN 4310-01-368-6413. 2 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.