The Baffle,acoustic,sonar, cataloged under National Stock Number 5845-01-646-0399, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5845-01-646-0399 |
| Primary Part Number | 77C959827-P1 |
| Item Name | Baffle,acoustic,sonar |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Manufacturer | Naval Sea Systems Command |
| 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 |
|---|---|
| 497A10041-1 | Westland Technologies, Inc. Dba Westland Technologies Inc (USA) |
| 77C959827-P1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 77C959827-P1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
NSN 5845-01-646-0399 is a Baffle,acoustic,sonar, manufactured by Naval Sea Systems Command, classified under FSC 5845, Underwater Sound Equipment. Status: active.
NSN 5845-01-646-0399 has 2 manufacturer part numbers on file: 497A10041-1 (Westland Technologies, Inc. Dba Westland Technologies Inc), 77C959827-P1 (Naval Sea Systems Command).
Key specifications for 77C959827-P1: Special Features: TILE, ACOUSTIC,(HEIGHT 6.93")(LENGTH 12.00")(HOLE DIA. 5.88"); Part Name Assigned by Controlling Agency: BAFFLE,ACOUSTIC,SON; End Item Identification: WAA,FWD MISC. 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 5845-01-646-0399 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.