The Signal,illumination, cataloged under National Stock Number 1370-01-561-3877, is classified within Federal Supply Class 1370 (Pyrotechnics) of the Ammunition and Explosives group. The manufacturer of record is Macgregor Sweden Ab. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1370-01-561-3877 |
| Primary Part Number | 21-10409 |
| Item Name | Signal,illumination |
| FSC / FSG | 1370 / 13 — Pyrotechnics |
| Manufacturer | Macgregor Sweden Ab |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21-10409 | Macgregor Sweden Ab (SWE) |
| Reference | Meaning |
|---|---|
| 21-10409/15 | 5/9 Secondary reference Macgregor Usa Inc. Div Macgregor Usa |
| 21-10409 | 3/9 Design control — primary reference Macgregor Sweden Ab |
NSN 1370-01-561-3877 is a Signal,illumination, manufactured by Macgregor Sweden Ab, classified under FSC 1370, Pyrotechnics. Status: active.
NSN 1370-01-561-3877 has 1 manufacturer part number on file: 21-10409 (Macgregor Sweden Ab).
Key specifications for 21-10409: Part Name Assigned by Controlling Agency: (INAVY) SIGNAL LAMP; SIGNAL ILLUMINATION; End Item Identification: SIDE RAMP ASSY 21-10236. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.