The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-137-3120, 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 C E Niehoff & Co. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-137-3120 |
| Primary Part Number | A3-100 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — No Item Name Available |
| Manufacturer | C E Niehoff & Co |
| Status | ACTIVE |
| Width | 0.450 INCHES NOMINAL IN |
| Style Designator | STRAIGHT RADIAL W/O BACK PLATE |
| Blade Quantity | 12 |
| Diameter | 5.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A3-100 PRIMARY | C E Niehoff & Co (USA) |
NSN 4140-01-137-3120 is a Impeller,fan,centrifugal, manufactured by C E Niehoff & Co, classified under FSC 4140 (No Item Name Available). Status: active.
NSN 4140-01-137-3120 has 1 cross-referenced part number: A3-100 (C E Niehoff & Co).
There are 3 known substitutes for 4140-01-137-3120: 5961-00-760-1116, 5950-00-859-7876, 5930-01-620-4431. Verify interchangeability with system specifications before substitution.
Key specifications for A3-100: Width: 0.450 INCHES NOMINAL IN; Style Designator: STRAIGHT RADIAL W/O BACK PLATE; Blade Quantity: 12; Diameter: 5.500 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.