The Guard,fan Impeller, cataloged under National Stock Number 4140-01-503-3558, 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 Newark Electronics Corporation Dba Newark. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Newark Electronics Corporation Dba Newark (CAGE 02929) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-503-3558 |
| Primary Part Number | 56P2972 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Newark Electronics Corporation Dba Newark |
| 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 |
|---|---|
| 56P2972 PRIMARY | Newark Electronics Corporation Dba Newark (USA) |
| Reference | Meaning |
|---|---|
| 84N1504 | 5/9 Secondary reference Newark Electronics Corporation Dba Newark |
| MCFG-06 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MCFG-06 REV A | D/9 Drawing number reference only Spectrum Educational Supplies Inc |
| MCFG-06 | 5/9 Secondary reference Spectrum Educational Supplies Inc |
NSN 4140-01-503-3558 is a Guard,fan Impeller, manufactured by Newark Electronics Corporation Dba Newark, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-503-3558 has 1 manufacturer part number on file: 56P2972 (Newark Electronics Corporation Dba Newark).
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.