The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-181-8580, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-181-8580 |
| Primary Part Number | A673 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Hub Bore Diameter | 0.688 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Overall Diameter | 6.000 INCHES NOMINAL IN |
| Keyway Depth | 0.103 INCHES NOMINAL IN |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Hub Quantity | 1 |
| Keyway Type | STRAIGHT |
| Blade Type | BACKWARD CURVE |
| Mounting Method | KEY |
| Keyway Length | 1.375 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | CLOCKWISE |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.094 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Hub Length | 1.375 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Hub Location | SINGLE INSIDE OFFSET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A673 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| NC16660-6IN | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| 999R0335PIECE34 | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| NC-16660 | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
NSN 4320-01-181-8580 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 4320-01-181-8580 has 4 cross-referenced part numbers: A673 (Circor Naval Solutions Llc Dba Warren Pumps), NC16660-6IN (Circor Naval Solutions Llc Dba Warren Pumps), 999R0335PIECE34 (Circor Naval Solutions Llc Dba Warren Pumps), NC-16660 (Circor Naval Solutions Llc Dba Warren Pumps).
There is 1 known substitute for 4320-01-181-8580: 4320-00-683-8554. Verify interchangeability with system specifications before substitution.
Key specifications for A673: Hub Bore Diameter: 0.688 INCHES NOMINAL IN; Material: NICKEL ALLOY; Overall Diameter: 6.000 INCHES NOMINAL IN; Keyway Depth: 0.103 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.