The Fan,centrifugal, cataloged under National Stock Number 4140-01-115-5973, 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 Ametek Inc Lamb Electric Div. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-115-5973 |
| Primary Part Number | 115978-0 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ametek Inc Lamb Electric Div |
| Status | ACTIVE |
| Outlet Location | BOTTOM |
| Mounting Facility Type and Quantity | 3 THREADED HOLE(S) |
| Shaft Bearing Type | BALL |
| Length | 6.995 INCHES NOMINAL IN |
| Drive Type | BELT |
| Outlet Inside Diameter | 1.760 INCHES NOMINAL IN |
| Style Designator | FIXED,ROUND OUTLETS |
| Discharge Direction | VERTICAL DOWN |
| Height | 6.560 INCHES NOMINAL IN |
| Stage Quantity | 3 |
| Material | PLASTIC HOUSING |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 82.0 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| 115978-0 | Ametek Inc Lamb Electric Div (USA) |
| 126-0001-003 | Shugart Corp Dba Intl Assembly Specialists (USA) |
| Reference | Meaning |
|---|---|
| 034228 | 5/9 Secondary reference Eg and G Rotron Regenerative Blower Opns |
| 036024 | 5/9 Secondary reference Eg and G Rotron Regenerative Blower Opns |
| 12-11582-00 | 5/9 Secondary reference Compaq Federal Llc |
| 027291 | 5/9 Secondary reference U.S. Government activity |
| 115652 | C/1 Advisory reference — outside the item-of-supply concept Ametek Inc Lamb Electric Div |
| 032228 | 3/2 Design control — primary reference U.S. Government activity |
| M357 | 5/9 Secondary reference Eg and G Rotron Regenerative Blower Opns |
NSN 4140-01-115-5973 is a Fan,centrifugal, manufactured by Ametek Inc Lamb Electric Div, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-115-5973 has 2 manufacturer part numbers on file: 115978-0 (Ametek Inc Lamb Electric Div), 126-0001-003 (Shugart Corp Dba Intl Assembly Specialists).
4 possible matches (shared part number, not a government interchangeability claim): 6515-01-515-9323, 4720-01-601-7556, 4720-01-694-6442. Verify interchangeability with system specifications before substitution.
Key specifications for 115978-0: Outlet Location: BOTTOM; Mounting Facility Type and Quantity: 3 THREADED HOLE(S); Shaft Bearing Type: BALL; Length: 6.995 INCHES NOMINAL IN. 14 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.