The Enclosure,electromagnetic Shield, cataloged under National Stock Number 4940-01-558-6520, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Caldon, Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Enclosure,electromagnetic Shield |
| FSC / FSG | 4940 — Miscellaneous Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Manufacturers | Caldon, Inc (CAGE 0YAB9) |
| Parameter | Value |
|---|---|
| NSN | 4940-01-558-6520 |
| Primary Part Number | 400D030G02 |
| Item Name | Enclosure,electromagnetic Shield |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Caldon, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 400D041 ITEM 20 | Caldon, Inc (USA) |
| 400D030G02 PRIMARY | Caldon, Inc (USA) |
| Reference | Meaning |
|---|---|
| 400D041 | D/9 Drawing number reference only Caldon, Inc |
NSN 4940-01-558-6520 is a Enclosure,electromagnetic Shield, manufactured by Caldon, Inc, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-01-558-6520 has 2 manufacturer part numbers on file: 400D041 ITEM 20 (Caldon, Inc), 400D030G02 (Caldon, Inc).
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.