The Pump,centrifugal, cataloged under National Stock Number 4320-01-504-4835, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4320-01-504-4835 |
| Primary Part Number | 4-TDHA-6 CRES PUMP ONLYQ3 |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 4-TDHA-6 CRES PUMP ONLYQ3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 999R0501 AND PL-999R0501Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 4-TDHA-6 CRES PUMP ONLY | 3/1 Design control — primary reference Circor Naval Solutions Llc Dba Warren Pumps |
| 999R0501 AND PL-999R0501 | 5/1 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
NSN 4320-01-504-4835 is a Pump,centrifugal, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-504-4835 has 2 manufacturer part numbers on file: 4-TDHA-6 CRES PUMP ONLYQ3 (Naval Inventory Control Point Mechanicsburg), 999R0501 AND PL-999R0501Q3 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 4-TDHA-6 CRES PUMP ONLYQ3: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: PUMP,TRIM & DRAIN; End Item Identification: PUMP CTFGL 230 GPM PSI RPM MD VLT; Reference Number Differentiating Characteristics: ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL. 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.
NSN 4320-01-504-4835 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.