The Computer Subassembly, cataloged under National Stock Number 7050-01-503-3989, is classified within Federal Supply Class 7050 (Information Technology Components) of the General Purpose ADP Equipment group. The manufacturer of record is Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 7050-01-503-3989 |
| Primary Part Number | 6ES7-321-1BH02-0AA0 |
| Item Name | Computer Subassembly |
| FSC / FSG | 7050 / 70 — Information Technology Components |
| Manufacturer | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division |
| Status | ACTIVE |
| Component Type and Quantity | 1 MODULE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 0.2500 lbs |
| Cube | 0.0361 cu ft |
| Part Number | Manufacturer |
|---|---|
| 351-12223 | Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited (CAN) |
| 351-12223 | L3harris Technologies, Inc. (USA) |
| 6ES7-321-1BH02-0AA0 PRIMARY | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division (USA) |
| ELP22550402 | Nidec Asi Spa Dba Asi Spa Div Mgd Motors Generators & Drives (ITA) |
| 6ES7 321-1BH02-0AA0 | Lutech Advanced Solutions Spa (ITA) |
NSN 7050-01-503-3989 is a Computer Subassembly, manufactured by Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division, classified under FSC 7050, Information Technology Components. Status: active.
NSN 7050-01-503-3989 has 5 manufacturer part numbers on file: 351-12223 (Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited), 351-12223 (L3harris Technologies, Inc.), 6ES7-321-1BH02-0AA0 (Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division), ELP22550402 (Nidec Asi Spa Dba Asi Spa Div Mgd Motors Generators & Drives), 6ES7 321-1BH02-0AA0 (Lutech Advanced Solutions Spa).
Key specifications for 6ES7-321-1BH02-0AA0: Component Type and Quantity: 1 MODULE; Special Features: 16 DIGITAL INPUT, 24 VDC VDC; End Item Identification: I/O DROP BOX, NIMITZ CLASS CVN. 1 specification is 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.
NSN 7050-01-503-3989 has DEMIL Code B. 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.