The Fan,centrifugal, cataloged under National Stock Number 4140-01-568-4127, 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 Code Micro, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-568-4127 |
| Primary Part Number | 44X1978 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Code Micro, Inc. |
| 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 |
|---|---|
| 44X1978 PRIMARY | Code Micro, Inc. (USA) |
| 20525975-101 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 44X1978 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
| 44X1978 | 5/9 Secondary reference IBM Global Government Industry |
| 39M4285 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
NSN 4140-01-568-4127 is a Fan,centrifugal, manufactured by Code Micro, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-568-4127 has 2 manufacturer part numbers on file: 44X1978 (Code Micro, Inc.), 20525975-101 (Lockheed Martin Corporation Div Rms).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-573-5509. Verify interchangeability with system specifications before substitution.
Key specifications for 44X1978: Special Features: ESERVER BLADE CENTER T BLOWER MODUALE; Part Name Assigned by Controlling Agency: BLOWER MODULE; End Item Identification: IBM BLADE CENTER T (8720), MODEL 2RX SERVER. 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.