The Fan Assembly,centrifugal, cataloged under National Stock Number 4140-01-522-4928, 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 Rittal Gmbh & Co. Kg. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4140-01-522-4928 |
| Primary Part Number | SK3341.230 |
| Item Name | Fan Assembly,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Rittal Gmbh & Co. Kg |
| Status | ACTIVE |
| 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 |
|---|---|
| SK3341.230 | Rittal Gmbh & Co. Kg (DEU) |
| SK3341.230 | Rittal Corp (USA) |
| Reference | Meaning |
|---|---|
| G581877-1 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company |
| G581877-1 | 3/9 Design control — primary reference Raytheon Co |
NSN 4140-01-522-4928 is a Fan Assembly,centrifugal, manufactured by Rittal Gmbh & Co. Kg, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-522-4928 has 2 manufacturer part numbers on file: SK3341.230 (Rittal Gmbh & Co. Kg), SK3341.230 (Rittal Corp).
Key specifications for SK3341.230: Special Features: NAVAIR (USN/USMC AVIATION (AIR TRAFFIC CONTROL)) REFER TO OPNAVINST 3721.5M.; Part Name Assigned by Controlling Agency: FAN TRAY ASSY, THREE FANS SINGLE AC FEED; End Item Identification: DIGITAL TERMINAL RADAR AIRPORT SURVEILLANCE RADAR (ASR11). 0 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.