The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-683-8554, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-683-8554 |
| Primary Part Number | A391 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Keyway Depth | 0.098 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN |
| Blade Type | BACKWARD CURVE |
| Keyway Type | STRAIGHT |
| Material | NICKEL ALLOY |
| Keyway Quantity | 1 |
| Blade Quantity | 5 |
| Overall Diameter | 4.812 INCHES NOMINAL IN |
| Keyway Length | 1.375 INCHES NOMINAL IN |
| Hub Location | SINGLE INSIDE OFFSET |
| Design Type | SINGLE WIDTH |
| Hub Projection Length Beyond Wheel Side | 0.094 INCHES NOMINAL IN |
| Hub Length | 1.375 INCHES NOMINAL IN |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Hub Bore Diameter | 0.688 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | CLOCKWISE |
| Hub Quantity | 1 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| NC16660-4.812 IN. | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| NC16660 | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| A391 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| NC16660REVA | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
NSN 4320-00-683-8554 is a Impeller,pump,centrifugal, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-683-8554 has 4 cross-referenced part numbers: NC16660-4.812 IN. (Circor Naval Solutions Llc Dba Warren Pumps), NC16660 (Circor Naval Solutions Llc Dba Warren Pumps), A391 (Circor Naval Solutions Llc Dba Warren Pumps), NC16660REVA (Circor Naval Solutions Llc Dba Warren Pumps).
There are 7 known substitutes for 4320-00-683-8554: 5360-00-715-1988, 6150-00-978-1314, 6110-01-063-0596 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for A391: Keyway Depth: 0.098 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN; Blade Type: BACKWARD CURVE; Keyway Type: STRAIGHT; Material: NICKEL ALLOY. 18 total characteristics are documented in the Federal Logistics Information System.