The Sonobuoy, cataloged under National Stock Number 5845-01-710-6818, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Undersea Sensor Systems, Inc. Div Ultra Maritime. 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 | 5845-01-710-6818 |
| Primary Part Number | 90321A-TL |
| Item Name | Sonobuoy |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Manufacturer | Undersea Sensor Systems, Inc. Div Ultra Maritime |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 90321A-TL PRIMARY | Undersea Sensor Systems, Inc. Div Ultra Maritime (USA) |
NSN 5845-01-710-6818 is a Sonobuoy, manufactured by Undersea Sensor Systems, Inc. Div Ultra Maritime, classified under FSC 5845, Underwater Sound Equipment. Status: active.
NSN 5845-01-710-6818 has 1 manufacturer part number on file: 90321A-TL (Undersea Sensor Systems, Inc. Div Ultra Maritime).
Key specifications for 90321A-TL: Special Features: .25 W TRANSMITTER OPERATING DEPTH 800M(2625 FT) W. 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 5845-01-710-6818 has DEMIL Code D. 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.