The Fan,centrifugal, cataloged under National Stock Number 4140-01-396-8923, 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 Nmb Technologies Corporation Div Advanced Electronics Engineering. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-396-8923 |
| Primary Part Number | 11938MB-A1N-AA00 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Nmb Technologies Corporation Div Advanced Electronics Engineering |
| Status | ACTIVE |
| Drive Type | DIRECT |
| Discharge Direction | HORIZONTAL |
| Material | ALUMINUM OVERALL |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| MODEL 4715MS-12W-B50 | Nmb Technologies Corporation Div Advanced Electronics Engineering (USA) |
| 11938MB-A1N-AA00 PRIMARY | Nmb Technologies Corporation Div Advanced Electronics Engineering (USA) |
| 4715MS-12W-B50-A00 | Nmb Technologies Corporation Div Advanced Electronics Engineering (USA) |
| 804-0100-001 PRIMARY | Schroff Inc Dba Pentair Technical Products (USA) |
| Reference | Meaning |
|---|---|
| 11938MB-A1N-EA00 | 5/9 Secondary reference Nmb Technologies Corporation Div Advanced Electronics Engineering |
NSN 4140-01-396-8923 is a Fan,centrifugal, manufactured by Nmb Technologies Corporation Div Advanced Electronics Engineering, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-396-8923 has 4 manufacturer part numbers on file: MODEL 4715MS-12W-B50 (Nmb Technologies Corporation Div Advanced Electronics Engineering), 11938MB-A1N-AA00 (Nmb Technologies Corporation Div Advanced Electronics Engineering), 4715MS-12W-B50-A00 (Nmb Technologies Corporation Div Advanced Electronics Engineering), 804-0100-001 (Schroff Inc Dba Pentair Technical Products).
Key specifications for 11938MB-A1N-AA00: Drive Type: DIRECT; Discharge Direction: HORIZONTAL; Material: ALUMINUM OVERALL; Rotation Direction for Which Designed: CLOCKWISE. 4 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.