The Cock,drain, cataloged under National Stock Number 4820-01-655-6028, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Perko Inc. Government technical data includes 4 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 | 4820-01-655-6028 |
| Primary Part Number | 0266DP0PLB |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Perko Inc |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 0266DP0PLB PRIMARY | Perko Inc (USA) |
NSN 4820-01-655-6028 is a Cock,drain, manufactured by Perko Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-655-6028 has 1 manufacturer part number on file: 0266DP0PLB (Perko Inc).
Key specifications for 0266DP0PLB: Flange Shape: ROUND FIRST END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Style Designator: STRAIGHT THRU; Part Name Assigned by Controlling Agency: DRAIN PLUG. 4 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.