The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-077-0955, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is S V M Group Inc Dba Storm Vulcan Mattoni. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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 | 4320-00-077-0955 |
| Primary Part Number | 258581 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | S V M Group Inc Dba Storm Vulcan Mattoni |
| Status | ACTIVE |
| Keyway Quantity | 1 |
| Hub Length | 0.625 INCHES NOMINAL AND 0.406 INCHES NOMINAL IN |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Keyway Type | RECTANGULAR |
| Hub Bore Diameter | 1.562 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN |
| Hub Quantity | 2 |
| Mounting Method | KEY |
| Overall Diameter | 5.375 INCHES NOMINAL IN |
| Hub Projection Length Beyond Wheel Side | 0.625 INCHES NOMINAL AND 1.125 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Hub Location | BACK SIDE AND FRONT SIDE |
| Blade Type | FORWARD CURVE |
| Keyway Length | 1.000 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Keyway Depth | 0.078 INCHES NOMINAL IN |
| Blade Quantity | 3 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 15939P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 258581 PRIMARY | S V M Group Inc Dba Storm Vulcan Mattoni (USA) |
| 15953P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 15939P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
NSN 4320-00-077-0955 is a Impeller,pump,centrifugal, manufactured by S V M Group Inc Dba Storm Vulcan Mattoni, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-077-0955 has 4 cross-referenced part numbers: 15939P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 258581 (S V M Group Inc Dba Storm Vulcan Mattoni), 15953P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 15939P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
There is 1 known substitute for 4320-00-077-0955: 4730-01-383-5762. Verify interchangeability with system specifications before substitution.
Key specifications for 258581: Keyway Quantity: 1; Hub Length: 0.625 INCHES NOMINAL AND 0.406 INCHES NOMINAL IN; Keyway Width: 0.188 INCHES NOMINAL IN; Keyway Type: RECTANGULAR. 18 total characteristics are documented in the Federal Logistics Information System.