The Insert,legend,light Indicator, cataloged under National Stock Number 6210-01-020-6637, is classified within Federal Supply Class 6210 (Indoor and Outdoor Electric Lighting Fixtures) of the Lighting Fixtures and Lamps group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6210-01-020-6637 |
| Primary Part Number | 837471-2-42 |
| Item Name | Insert,legend,light Indicator |
| FSC / FSG | 6210 / 62 — Indoor and Outdoor Electric Lighting Fixtures |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Length | 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.322 INCHES MAXIMUM0.322 INCHES MAXIMUM IN |
| Design Shape | RECTANGLERECTANGLE |
| Inscription | MAD BOOMMAD BOOM |
| Features Provided | LEGENDLEGEND |
| Color | CLEAR INSCRIPTION |
| Color | BLACK INSCRIPTION BACKGROUND |
| Width | 1.088 INCHES MINIMUM AND 1.088 INCHES MINIMUM AND 1.090 INCHES MAXIMUM1.090 INCHES MAXIMUM IN |
| Material | PLASTIC |
| Thickness | 0.004 INCHES NOMINAL0.004 INCHES NOMINAL IN |
| 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 |
|---|---|
| 837471-2-42 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 837471-2-42 | 5/9 Secondary reference U.S. Government activity |
NSN 6210-01-020-6637 is a Insert,legend,light Indicator, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 6210, Indoor and Outdoor Electric Lighting Fixtures. Status: active.
NSN 6210-01-020-6637 has 1 manufacturer part number on file: 837471-2-42 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 837471-2-42: Length: 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.322 INCHES MAXIMUM0.322 INCHES MAXIMUM IN; Design Shape: RECTANGLERECTANGLE; Inscription: MAD BOOMMAD BOOM; Features Provided: LEGENDLEGEND. 9 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.