The Cock,drain, cataloged under National Stock Number 4820-01-270-4932, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is W S Darley & Co Div Darley Pump Division. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-270-4932 |
| Primary Part Number | 5203600 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | W S Darley & Co Div Darley Pump Division |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 001658T | Kovatch Corp. (USA) |
| H359 ITEM 35 | W S Darley & Co Australia Global Fire Solutions Pty Ltd (AUS) |
| 051-00001-42 | Kovatch Corp. (USA) |
| 5203600 PRIMARY | W S Darley & Co Div Darley Pump Division (USA) |
| Reference | Meaning |
|---|---|
| H359 ITEM 35 | 5/9 Secondary reference W S Darley & Co |
| PA167 | 5/9 Secondary reference W S Darley & Co |
NSN 4820-01-270-4932 is a Cock,drain, manufactured by W S Darley & Co Div Darley Pump Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-270-4932 has 4 manufacturer part numbers on file: 001658T (Kovatch Corp.), H359 ITEM 35 (W S Darley & Co Australia Global Fire Solutions Pty Ltd), 051-00001-42 (Kovatch Corp.), 5203600 (W S Darley & Co Div Darley Pump Division).
Key specifications for 5203600: Style Designator: STRAIGHT THRU; End Item Identification: NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK); Valve Operation Method: MANUAL. 2 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.