The Panel,alarm,shipboard, cataloged under National Stock Number 6320-01-673-3551, is classified within Federal Supply Class 6320 (Shipboard Alarm and Signal Systems) of the Alarm, Signal, and Security Detection Systems group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6320-01-673-3551 |
| Item Name | Panel,alarm,shipboard |
| FSC / FSG | 6320 / 63 — Shipboard Alarm and Signal Systems |
| Status | ACTIVE |
| Phase | SINGLE |
| DC Voltage Rating | 24.0 VOLTS NOMINAL |
| Extra Long Reference Number | 90B-N4PB-2H-X-4W-NPB-4-30-W-AM-NR-F-X-E-NR-RLY W |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY PAC ELRN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 90B-N4PB-2H-X-4W-NPB-4-30-W-AM-- | 3/1 Design control — primary reference Ametek Inc. Div Ametek Power Instruments |
| 90B-N4PB-2H-X-4W-NPB-4-30-W-AM-- | 5/1 Secondary reference Flow Controls, Inc. Dba Flow Controls Inc |
NSN 6320-01-673-3551 is a Panel,alarm,shipboard, classified under FSC 6320, Shipboard Alarm and Signal Systems. Status: active.
Key specifications for 6320-01-673-3551: Phase: SINGLE; DC Voltage Rating: 24.0 VOLTS NOMINAL; Extra Long Reference Number: 90B-N4PB-2H-X-4W-NPB-4-30-W-AM-NR-F-X-E-NR-RLY W; Special Features: ANNUNCIATOR: WALL MOUNTED NEMA 4/12 ENCLOSURE WITH SWING FRAME; 2 CELLS HIGH, 4 CELLS WIDE; NO INTERNAL PUSH BUTTONS; QUAD SIZE INPUTS, 4 PER CELL/W WINDOW; 30 ALARMS/TOTAL INPUTS; WHITE WINDOW; ISA-M ALARM SEQUENCE; NO AUX RETRANSMIT RELAY PER INPUT; 24 VDC FIELD CONTACT VOLTAGE (AN-SUPPLIED); ENGRAV ED WINDOWS; NO COMMUNICATIONS; ADDITIONAL CSM RELAY K3,K4 VDC. 4 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.