The Fan Muffin AC Rotro, cataloged under National Stock Number 4140-01-549-9316, 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 Lockheed Martin Corporation Div Rms - Manassas. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Fan Muffin AC Rotro |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Lockheed Martin Corporation Div Rms - Manassas (CAGE 52088) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-549-9316 |
| Primary Part Number | B1147 |
| Item Name | Fan Muffin AC Rotro |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms - Manassas |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| B1147 PRIMARY | Lockheed Martin Corporation Div Rms - Manassas (USA) |
| Reference | Meaning |
|---|---|
| 028027-Q70 | 5/9 Secondary reference Comair Rotron Inc Sub of Kl Industries Inc |
| B1147 | 3/2 Design control — primary reference U.S. Government activity |
| 79C0678-00 | 5/2 Secondary reference U.S. Government activity |
NSN 4140-01-549-9316 is a Fan Muffin AC Rotro, manufactured by Lockheed Martin Corporation Div Rms - Manassas, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-549-9316 has 1 manufacturer part number on file: B1147 (Lockheed Martin Corporation Div Rms - Manassas).
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.