The Switchboard,alarm,shipboard, cataloged under National Stock Number 6320-01-149-5758, is classified within Federal Supply Class 6320 (Shipboard Alarm and Signal Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is Dynalec Corporation. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 6320-01-149-5758 |
| Primary Part Number | 3455-240 |
| Item Name | Switchboard,alarm,shipboard |
| FSC / FSG | 6320 / 63 — Shipboard Alarm and Signal Systems |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Phase | SINGLE |
| Circuit Capacity | 40 |
| AC Voltage Rating | 115.0 VOLTS NOMINAL |
| Mounting Method | BULKHEAD |
| Front Type | LIVE |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 003455-240 | Dynalec Corporation (USA) |
| 3455-240 PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1C/SM-40 | 5/9 Secondary reference U.S. Government activity |
| MIL-A-17196 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 3455-240 | 5/9 Secondary reference U.S. Government activity |
NSN 6320-01-149-5758 is a Switchboard,alarm,shipboard, manufactured by Dynalec Corporation, classified under FSC 6320, Shipboard Alarm and Signal Systems. Status: active.
NSN 6320-01-149-5758 has 2 manufacturer part numbers on file: 003455-240 (Dynalec Corporation), 3455-240 (Dynalec Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6320-01-158-2177. Verify interchangeability with system specifications before substitution.
Key specifications for 3455-240: Overall Height: 28.100 INCHES NOMINAL IN; Phase: SINGLE; Circuit Capacity: 40; AC Voltage Rating: 115.0 VOLTS NOMINAL. 6 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.
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.