The Unmanned Watercraft, cataloged under National Stock Number 1990-01-721-2605, is classified within Federal Supply Class 1990 (Miscellaneous Vessels) of the Ships, Small Craft, Pontoons, and Floating Docks 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1990-01-721-2605 |
| Primary Part Number | 163603 |
| Item Name | Unmanned Watercraft |
| FSC / FSG | 1990 / 19 — Miscellaneous Vessels |
| Manufacturer | Hii Unmanned Systems, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 163603 PRIMARY | Hii Unmanned Systems, Inc (USA) |
NSN 1990-01-721-2605 is a Unmanned Watercraft, manufactured by Hii Unmanned Systems, Inc, classified under FSC 1990, Miscellaneous Vessels. Status: active.
NSN 1990-01-721-2605 has 1 manufacturer part number on file: 163603 (Hii Unmanned Systems, Inc).
Key specifications for 163603: Special Features: THE MK 18 MOD 1 UUV IS A TWO-MAN PORTABLE, HYDRODYNAMIC, SELF-PROPELLED, UNTETHERED VEHICLE WHICH INCORPORATES A VARIETY OF SENSING TECHNOLOGIES TO DETECT, CLASSIFY, LOCATE REQUIRE AND IDENTIFY BOTTOM TARGETS. EACH SYSTEM IS COMPRISED OF THREE MOD 1 UUVS ALONG WITH ALL SUPPORT EQUIPMENT AND CONTAINERS REQUIRED TO PERFORM ITS MISSION.; Part Name Assigned by Controlling Agency: MK18 UUV MOD 1 BLK C.. 0 specifications are 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 1990-01-721-2605 has DEMIL Code C. 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.