The Fan,centrifugal, cataloged under National Stock Number 4140-01-148-7854, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Shallcross Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-148-7854 |
| Primary Part Number | RCL AL-50 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Shallcross Inc |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Quantity | 1 |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Discharge Direction | VERTICAL UP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| RCL AL-50 PRIMARY | Shallcross Inc (USA) |
| Reference | Meaning |
|---|---|
| RCL AL-50 | 5/9 Secondary reference White Consolidated Industries Inc Universal Nolin Div |
| SM-D-613248 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4140-01-148-7854 is a Fan,centrifugal, manufactured by Shallcross Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-148-7854 has 1 manufacturer part number on file: RCL AL-50 (Shallcross Inc).
Key specifications for RCL AL-50: Outlet Location: TOP; Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Quantity: 1; Style Designator: FIXED, RECTANGULAR OUTLETS. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.