The Blower Wheel, cataloged under National Stock Number 4140-01-377-1237, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-377-1237 |
| Item Name | Blower Wheel |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | 16IN.WIDTH;27IN.WHL DIA.;2 WHLS.FURNISHED IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 272A-183CPCB | 3/9 Design control — primary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| 272A-183CPCB | C/1 Advisory reference — outside the item-of-supply concept Fm Af, Llc Dba American Fan Company |
NSN 4140-01-377-1237 is a Blower Wheel, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-377-1237: General Characteristics Item Description: 16IN.WIDTH;27IN.WHL DIA.;2 WHLS.FURNISHED IN; End Item Identification: BUFFALO AIR HANDLER AH7A-18 MODEL G. 1 specification is 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.