The Ignition Exciter,ai, cataloged under National Stock Number 4310-01-504-4672, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Ignition Exciter,ai |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Manufacturers | Mel Aviation Limited Div Mel Aviation Ltd (CAGE K7974); Rtx Corporation Div Pratt & Whitney (CAGE 55820) |
| Parameter | Value |
|---|---|
| NSN | 4310-01-504-4672 |
| Primary Part Number | 179420-2 |
| Item Name | Ignition Exciter,ai |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Part Number | Manufacturer |
|---|---|
| 9048900-2D | Mel Aviation Limited Div Mel Aviation Ltd (GBR) |
| 179420-2 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 9048900-2D | 5/9 Secondary reference New Unison Corp |
| 4952393-19 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 4310-01-504-4672 is a Ignition Exciter,ai, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-504-4672 has 2 manufacturer part numbers on file: 9048900-2D (Mel Aviation Limited Div Mel Aviation Ltd), 179420-2 (Rtx Corporation Div Pratt & Whitney).
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4310-01-504-4672 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.