The Housing,liquid Pump, cataloged under National Stock Number 4320-01-293-2475, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-293-2475 |
| Primary Part Number | RY-190581 ITEM 1.1Q3 |
| Item Name | Housing,liquid Pump |
| 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 A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| RY-190581 ITEM 1.1Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| RW-189980 ITEM 1.1Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 981539-01Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| RW-189980 ITEM 1.1 | 5/9 Secondary reference U.S. Government activity |
| RY-190581 ITEM 1.1 | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 981539-01 | 5/9 Secondary reference U.S. Government activity |
| 981539-01 | 3/1 Design control — primary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| RY-190581 ITEM 1.1 | 5/9 Secondary reference U.S. Government activity |
| RW-189980 ITEM 1.1 | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 4320-01-293-2475 is a Housing,liquid Pump, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-293-2475 has 3 manufacturer part numbers on file: RY-190581 ITEM 1.1Q3 (Naval Inventory Control Point Mechanicsburg), RW-189980 ITEM 1.1Q3 (Naval Inventory Control Point Mechanicsburg), 981539-01Q3 (Naval Inventory Control Point Mechanicsburg).
Key specifications for RY-190581 ITEM 1.1Q3: 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. 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.