The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-225-9950, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Carver Pump Company. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-225-9950 |
| Primary Part Number | 31-7-49 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Blade Type | BACKWARD CURVE |
| Design Type | SINGLE WIDTH |
| Keyway Quantity | 1 |
| Material | COPPER ALLOY |
| Hub Quantity | 2 |
| Keyway Depth | 0.125 INCHES NOMINAL IN |
| Keyway Type | RECTANGULAR |
| Hub Location | BACK SIDE AND FRONT SIDE |
| Overall Diameter | 4.125 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Keyway Length | 1.375 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Mounting Method | KEY |
| Hub Projection Length Beyond Wheel Side | 1.000 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN |
| Hub Length | 1.000 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.625 INCHES NOMINAL AND 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4320-00-225-9950 is a Impeller,pump,centrifugal, manufactured by Carver Pump Company, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-225-9950 has 3 cross-referenced part numbers: 31-7-49 (General Signal Corp), 31-7-49 (Aurora Pump a Unit of General Signal Corp), 31-7-49 (Carver Pump Company).
There is 1 known substitute for 4320-00-225-9950: 5945-00-826-9534. Verify interchangeability with system specifications before substitution.
Key specifications for 31-7-49: Blade Type: BACKWARD CURVE; Design Type: SINGLE WIDTH; Keyway Quantity: 1; Material: COPPER ALLOY. 18 total characteristics are documented in the Federal Logistics Information System.