The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-139-3981, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-139-3981 |
| Primary Part Number | A669 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Mounting Method | KEY |
| Overall Diameter | 8.882 INCHES NOMINAL IN |
| Blade Type | STRAIGHT |
| Hub Bore Diameter | 1.625 INCHES NOMINAL IN |
| Keyway Type | STRAIGHT |
| Hub Length | 2.875 INCHES NOMINAL IN |
| Keyway Length | 3.125 INCHES NOMINAL IN |
| Design Type | DOUBLE WIDTH |
| Hub Location | CENTER OF MOUNTING FLANGE |
| Keyway Quantity | 1 |
| Blade Quantity | 6 |
| Hub Quantity | 1 |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Material | STEEL CORROSION RESISTING |
| Keyway Width | 0.313 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 657C1156 | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| A669 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| 55-22556-14R | Euramco Safety Inc (USA) |
NSN 4320-00-139-3981 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 4320-00-139-3981 has 3 cross-referenced part numbers: 657C1156 (Circor Naval Solutions Llc Dba Warren Pumps), A669 (Circor Naval Solutions Llc Dba Warren Pumps), 55-22556-14R (Euramco Safety Inc).
There are 3 known substitutes for 4320-00-139-3981: 6810-00-106-1005, 5360-00-312-6204, 3120-00-661-4982. Verify interchangeability with system specifications before substitution.
Key specifications for A669: Mounting Method: KEY; Overall Diameter: 8.882 INCHES NOMINAL IN; Blade Type: STRAIGHT; Hub Bore Diameter: 1.625 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.