The Impeller,fan,axial, cataloged under National Stock Number 4140-01-254-7938, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Alter Harry Co the Div of T E C. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-254-7938 |
| Primary Part Number | 21555 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — No Item Name Available |
| Manufacturer | Alter Harry Co the Div of T E C |
| Status | ACTIVE |
| Material | ALUMINUM OVERALL |
| Blade Quantity | 5 |
| Rotation Direction for Which Designed | CLOCKWISE |
| Diameter | 9.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21555 PRIMARY | Alter Harry Co the Div of T E C (USA) |
NSN 4140-01-254-7938 is a Impeller,fan,axial, manufactured by Alter Harry Co the Div of T E C, classified under FSC 4140 (No Item Name Available). Status: active.
NSN 4140-01-254-7938 has 1 cross-referenced part number: 21555 (Alter Harry Co the Div of T E C).
There are 6 known substitutes for 4140-01-254-7938: 5331-00-237-7641, 3110-00-293-9302, 5315-00-845-7787 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21555: Material: ALUMINUM OVERALL; Blade Quantity: 5; Rotation Direction for Which Designed: CLOCKWISE; Diameter: 9.000 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.