The Rotor,pump, cataloged under National Stock Number 4320-01-047-3688, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-047-3688 |
| Primary Part Number | RSC187DF |
| Item Name | Rotor,pump |
| 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) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| RSC187DF PRIMARY | Circor Pumps North America Llc (USA) |
| SF10583PC22 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| SF-10583 | 5/9 Secondary reference Siemens Energy, Inc. |
| SF-10583 | D/9 Drawing number reference only Circor Pumps North America Llc |
| SF10583PC22 | 5/9 Secondary reference Siemens Energy, Inc. |
| RSC187DF | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 4320-01-047-3688 is a Rotor,pump, manufactured by Circor Pumps North America Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-047-3688 has 2 manufacturer part numbers on file: RSC187DF (Circor Pumps North America Llc), SF10583PC22 (Circor Pumps North America Llc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-061-0476. Verify interchangeability with system specifications before substitution.
Key specifications for RSC187DF: Special Features: STEEL TOOL PER FED SPEC QQ-T-570,CLASS D-2,AISI TYPE D-2,CASEHARDENED TO 57-60 ROCKWELL C SCALE; End Item Identification: PUMP,ROTORY,DELAVAL IMO TYPE D12DBX-187. 0 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.