The Cock,drain, cataloged under National Stock Number 4820-00-552-4644, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Defense Maritime Solutions, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cock,drain |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Defense Maritime Solutions, Inc. (CAGE 0EYA6) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-552-4644 |
| Primary Part Number | DAAK100174 REVC POS NR 252.01 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Defense Maritime Solutions, 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 |
|---|---|
| DAAK100174 REVC POS NR 252.01 | Defense Maritime Solutions, Inc. (USA) |
| BOM N25-02296-A POS NR 252.01 | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2589176 | 7/2 Vendor item drawing reference U.S. Government activity |
| Q3592 | 5/9 Secondary reference U.S. Government activity |
| SV404P-12-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-552-4644 is a Cock,drain, manufactured by Defense Maritime Solutions, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-552-4644 has 2 manufacturer part numbers on file: DAAK100174 REVC POS NR 252.01 (Defense Maritime Solutions, Inc.), BOM N25-02296-A POS NR 252.01 (Defense Maritime Solutions, Inc.).
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.