# NSN 4940-01-631-0625: Enclosure, Electromagnetic Shield

NSN 4940-01-631-0625 (also written 4940016310625; NIIN 01-631-0625) is an enclosure, electromagnetic shield in Federal Supply Class 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4940-01-631-0625 (4940016310625)
- NIIN: 01-631-0625 (016310625)
- Item name: ENCLOSURE,ELECTROMAGNETIC SHIELD
- Federal Supply Class: [FSC 4940 Miscellaneous Maintenance and Repair Shop Specialized Equipment](https://nsnexplorer.com/fsc/4940/)
- Federal Supply Group: [FSG 49](https://nsnexplorer.com/group/49/)
- Acquisition method suffix code: AMSC H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-10)
- Acquisition method code: 4

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 10.00 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 8.00 |
| MATT | MATERIAL | STEEL |
| FEAT | SPECIAL FEATURES | DESCRIPTION: USE THIS ENCLOSURE IN CORROSIVE INDOOR AND OUTDOOR APPLICATIONS TO CONTAIN STRAY ELECTROMAGNETIC INTERFERENCE (EMI) SIGNALS PRODUCED SIGNALS PRODUCED BY INTERNAL COMPONENTS AND TO SHIELD THOSE COMPONENTS FROM EXTERNAL EMI/RFI |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | ENCLOSURE; CONTINUOUS HINGE WITH CLAMPS, EMC, TYPE 4X |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 6.00 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| A1008CHEMCSS | 1WSN4 | HOFFMAN ENCLOSURES INC DBA HOFFMAN ENCLOSURES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4940016310625&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4940016310625
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4940-01-631-0625/
JSON: https://nsnexplorer.com/api/nsn/4940-01-631-0625.json