The Test Set,underwater Mine, cataloged under National Stock Number 4923-00-671-5255, is classified within Federal Supply Class 4923 (Depth Charges and Underwater Mines Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 7 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4923-00-671-5255 |
| Primary Part Number | 1476256 |
| Item Name | Test Set,underwater Mine |
| FSC / FSG | 4923 / 49 — Depth Charges and Underwater Mines Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Model Number | MK340 MOD 0 |
| Document Identification | 1456256 |
| Unpackaged Unit Length | 35.000 INCHES NOMINAL IN |
| Component Document Origin | GOVERNMENT |
| Unpackaged Unit Width | 10.000 INCHES NOMINAL IN |
| Unpackaged Unit Height | 13.500 INCHES NOMINAL IN |
| Document Source | 10001 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1476256 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 4923-00-671-5255 is a Test Set,underwater Mine, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4923, Depth Charges and Underwater Mines Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4923-00-671-5255 has 1 manufacturer part number on file: 1476256 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1476256: Model Number: MK340 MOD 0; Document Identification: 1456256; Unpackaged Unit Length: 35.000 INCHES NOMINAL IN; Component Document Origin: GOVERNMENT. 7 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 4923-00-671-5255 has DEMIL Code D. 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.