The Computer Subassembly, cataloged under National Stock Number 7050-01-500-7557, is classified within Federal Supply Class 7050 (Information Technology Components) of the General Purpose ADP Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 7050-01-500-7557 |
| Primary Part Number | DD1630630 PC 20 |
| Item Name | Computer Subassembly |
| FSC / FSG | 7050 / 70 — Information Technology Components |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Component Type and Quantity | 1 MODULE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| 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 |
| Part Number | Manufacturer |
|---|---|
| DD1635544 | Naval Sea Systems Command (USA) |
| 1630630/1635538-74 ITEM NO. 20 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| DD1630630 PC 20 PRIMARY | Naval Sea Systems Command (USA) |
| 6ES7 195-7HD00-0XA0 | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division (USA) |
| Reference | Meaning |
|---|---|
| 6ES71957HD000XA 0 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 6ES71957HD00XA0 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 7050-01-500-7557 is a Computer Subassembly, manufactured by Naval Sea Systems Command, classified under FSC 7050, Information Technology Components. Status: active.
NSN 7050-01-500-7557 has 4 manufacturer part numbers on file: DD1635544 (Naval Sea Systems Command), 1630630/1635538-74 ITEM NO. 20 (Huntington Ingalls Inc Div Newport News Shipbuilding), DD1630630 PC 20 (Naval Sea Systems Command), 6ES7 195-7HD00-0XA0 (Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division).
2 possible matches (shared part number, not a government interchangeability claim): 7050-01-513-6340, 6150-01-553-5301. Verify interchangeability with system specifications before substitution.
Key specifications for DD1630630 PC 20: Component Type and Quantity: 1 MODULE; Special Features: BUS MODULE BM IM/IM(---7HD) FOR REDUNDANCY WITH 2XIM 153-2/2 FO; End Item Identification: PANEL, FLEX I/O; W/S 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.
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.