The Tool and Equipment Kit,underwate, cataloged under National Stock Number 4923-01-485-9925, 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 Mission Systems Orchard Park Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4923-01-485-9925 |
| Primary Part Number | B50253-1 |
| Item Name | Tool and Equipment Kit,underwate |
| FSC / FSG | 4923 / 49 — Depth Charges and Underwater Mines Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | Mission Systems Orchard Park Inc |
| 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 |
|---|---|
| B50253-1 PRIMARY | Mission Systems Orchard Park Inc (USA) |
| B50253-1 | Msi-Defence Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| B50253-1 | 5/9 Secondary reference Carleton Technologies Inc Div Tampa Facility |
| WD3400 | 5/9 Secondary reference Carleton Technologies Inc Div Tampa Facility |
NSN 4923-01-485-9925 is a Tool and Equipment Kit,underwate, manufactured by Mission Systems Orchard Park Inc, classified under FSC 4923, Depth Charges and Underwater Mines Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4923-01-485-9925 has 2 manufacturer part numbers on file: B50253-1 (Mission Systems Orchard Park Inc), B50253-1 (Msi-Defence Systems Ltd).
Key specifications for B50253-1: Special Features: INCLUDES STUD TOOL, C SPANNER, AND CHARGING ADAPTER; End Item Identification: USED ON CLEARANCE DIVER BREATHINGAPPARATUS. 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.