The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-334-3799, 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 11 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-334-3799 |
| Primary Part Number | 16X17B86X3 DESIGN BQ3 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Pumping Element Operating Position | VERTICAL |
| Centrifugal Pump Impeller Quantity | 1 |
| Criticality Code Justification | ZZZY |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 1200.0 REVOLUTIONS PER MINUTE AND 600.0 REVOLUTIONS PER MINUTE AND 300.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Stage Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Centrifugal Pump Design | MIXED FLOW |
| 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 |
|---|---|
| 16X17B86X3 DESIGN BQ3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 11690-A-18 AND 11662-F-18Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 16X17B86X3 DESIGN B | 5/9 Secondary reference U.S. Government activity |
| 11690-A-18 AND 11662-F-18 | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 16X17B86X3 DESIGN B | 3/1 Design control — primary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 11690-A-18 AND 11662-F-18 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-01-334-3799 is a Pump Unit,centrifugal, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-334-3799 has 2 manufacturer part numbers on file: 16X17B86X3 DESIGN BQ3 (Naval Inventory Control Point Mechanicsburg), 11690-A-18 AND 11662-F-18Q3 (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-581-8268. Verify interchangeability with system specifications before substitution.
Key specifications for 16X17B86X3 DESIGN BQ3: Pumping Element Operating Position: VERTICAL; Centrifugal Pump Impeller Quantity: 1; Criticality Code Justification: ZZZY; Prime Mover Quantity: 1. 11 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 4320-01-334-3799 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.