The Sonobuoy, cataloged under National Stock Number 5845-01-115-4646, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5845-01-115-4646 |
| Item Name | Sonobuoy |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Status | ACTIVE |
| Design Type | DIRECTIONAL |
| Electromagnetic Wave Transmitting Power Output in Watts | 1.000 |
| Electromagnetic Wave Transmitting Frequency | 136.0 MEGAHERTZ MINIMUM AND 173.5 MEGAHERTZ MAXIMUM |
| Electrical Power Source Relationship | SELF-CONTAINED |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ITEM TYPE NUMBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AN/SSQ77A | 3/1 Design control — primary reference U.S. Government activity |
| 120248 | 5/1 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5845-01-115-4646 is a Sonobuoy, classified under FSC 5845, Underwater Sound Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5845-01-155-5694, 5305-01-399-8336. Verify interchangeability with system specifications before substitution.
Key specifications for 5845-01-115-4646: Design Type: DIRECTIONAL; Electromagnetic Wave Transmitting Power Output in Watts: 1.000; Electromagnetic Wave Transmitting Frequency: 136.0 MEGAHERTZ MINIMUM AND 173.5 MEGAHERTZ MAXIMUM; Electrical Power Source Relationship: SELF-CONTAINED. 5 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 5845-01-115-4646 has DEMIL Code F. 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.