The A B Switch, cataloged under National Stock Number 1287-01-540-9046, is classified within Federal Supply Class 1287 (Fire Control Sonar Equipment) of the Fire Control Equipment group. The manufacturer of record is Naval Undersea Warfare Ctr. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 1287-01-540-9046 |
| Primary Part Number | 7402562 |
| Item Name | A B Switch |
| FSC / FSG | 1287 / 12 — Fire Control Sonar Equipment |
| Manufacturer | Naval Undersea Warfare Ctr |
| Status | ACTIVE |
| 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 |
|---|---|
| 7402562 PRIMARY | Naval Undersea Warfare Ctr (USA) |
NSN 1287-01-540-9046 is a A B Switch, manufactured by Naval Undersea Warfare Ctr, classified under FSC 1287, Fire Control Sonar Equipment. Status: active.
NSN 1287-01-540-9046 has 1 manufacturer part number on file: 7402562 (Naval Undersea Warfare Ctr).
1 possible match (shared part number, not a government interchangeability claim): 8465-01-594-6297. Verify interchangeability with system specifications before substitution.
Key specifications for 7402562: End Item Identification: FLAT PANEL DISPLAY, TRIDENT. 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.
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.