The Pump,rotary, cataloged under National Stock Number 4320-01-645-3952, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Pumps North America Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Pump,rotary |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Bird-Johnson Propeller Company, Llc (CAGE 07309); Circor Pumps North America Llc (CAGE 59180) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-645-3952 |
| Primary Part Number | EVCSX-162/100 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| NMM101495 | Bird-Johnson Propeller Company, Llc (USA) |
| EVCSX-162/100 PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| NMM100189 REV D ITEM N0 902 | C/1 Advisory reference — outside the item-of-supply concept Bird-Johnson Propeller Company, Llc |
| SF11142 | C/1 Advisory reference — outside the item-of-supply concept Circor Pumps North America Llc |
NSN 4320-01-645-3952 is a Pump,rotary, manufactured by Circor Pumps North America Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-645-3952 has 2 manufacturer part numbers on file: NMM101495 (Bird-Johnson Propeller Company, Llc), EVCSX-162/100 (Circor Pumps North America Llc).
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.