The Ballast Plate, cataloged under National Stock Number 2090-01-620-8218, is classified within Federal Supply Class 2090 (Miscellaneous Ship and Marine Equipment) of the Ship and Marine Equipment group. The manufacturer of record is Hii Unmanned Systems, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ballast Plate |
| FSC / FSG | 2090 — Miscellaneous Ship and Marine Equipment (FSG 20) |
| Manufacturers | Hii Unmanned Systems, Inc (CAGE 4Z5A9) |
| Parameter | Value |
|---|---|
| NSN | 2090-01-620-8218 |
| Primary Part Number | 153143 |
| Item Name | Ballast Plate |
| FSC / FSG | 2090 / 20 — Miscellaneous Ship and Marine Equipment |
| Manufacturer | Hii Unmanned Systems, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 153143 PRIMARY | Hii Unmanned Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| 153143 | 3/9 Design control — primary reference Hydroid, Llc |
NSN 2090-01-620-8218 is a Ballast Plate, manufactured by Hii Unmanned Systems, Inc, classified under FSC 2090, Miscellaneous Ship and Marine Equipment. Status: active.
NSN 2090-01-620-8218 has 1 manufacturer part number on file: 153143 (Hii Unmanned Systems, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-664-9326. Verify interchangeability with system specifications before substitution.
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.