The Junction Box, cataloged under National Stock Number 5975-01-457-0028, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electronic Marine Systems, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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 | 5975-01-457-0028 |
| Primary Part Number | 25121 |
| Item Name | Junction Box |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Electronic Marine Systems, Inc. |
| Status | ACTIVE |
| Style Designator | SQUARE-TWO GANG BOX |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 25121 PRIMARY | Electronic Marine Systems, Inc. (USA) |
NSN 5975-01-457-0028 is a Junction Box, manufactured by Electronic Marine Systems, Inc., classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-457-0028 has 1 manufacturer part number on file: 25121 (Electronic Marine Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-537-7776. Verify interchangeability with system specifications before substitution.
Key specifications for 25121: Style Designator: SQUARE-TWO GANG BOX; Special Features: 20 POINT. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.