The Fan,tubeaxial, cataloged under National Stock Number 4140-01-679-2143, 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. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4140-01-679-2143 |
| Primary Part Number | 11938TB-A1N-NP-00 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Nmb Technologies Corporation |
| Status | ACTIVE |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| 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 |
|---|---|
| S9515-A6-MMA-010 FIG 7-3-21 | Naval Sea Systems Command (USA) |
| S9515-A6-MMA-010 TBL 7-9-21 | Naval Sea Systems Command (USA) |
| 11938TB-A1N-NP-00 PRIMARY | Nmb Technologies Corporation (USA) |
| Reference | Meaning |
|---|---|
| 11938TB-A1N-NP-00 | 5/9 Secondary reference Digi-Key Corp |
| 4715TS-12T-E5A-A00 | 5/9 Secondary reference New Hampshire Ball Bearings Inc Div Precision Division |
NSN 4140-01-679-2143 is a Fan,tubeaxial, manufactured by Nmb Technologies Corporation, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-679-2143 has 3 manufacturer part numbers on file: S9515-A6-MMA-010 FIG 7-3-21 (Naval Sea Systems Command), S9515-A6-MMA-010 TBL 7-9-21 (Naval Sea Systems Command), 11938TB-A1N-NP-00 (Nmb Technologies Corporation).
Key specifications for 11938TB-A1N-NP-00: Drive Type: DIRECT; Style Designator: FIXED; Part Name Assigned by Controlling Agency: FAN, AXIAL FLOW; End Item Identification: ADVANCED INTEGRATED LOW PRESSURE ELECTROLYZER. 2 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.