The Cock,drain, cataloged under National Stock Number 4820-01-436-9589, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-436-9589 |
| Primary Part Number | 5458K2 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Furnished Items and Quantity | 1 HANDLE |
| Connection Style | BARBED-BEADED (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Inside Diameter Hose Accommodated | 0.375 INCHES SECOND END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Media for Which Designed | LIQUID SINGLE RESPONSE |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT FIRST END |
| 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 |
|---|---|
| KAL-01C PG 9.6 ITEM 10 | Clausing Industrial Inc Dba Clausing Corp (USA) |
| 5458K2 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| C-12 | Clausing Industrial Inc Dba Clausing Corp (USA) |
| Reference | Meaning |
|---|---|
| 4820PL0651270 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4820-01-436-9589 is a Cock,drain, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-436-9589 has 3 manufacturer part numbers on file: KAL-01C PG 9.6 ITEM 10 (Clausing Industrial Inc Dba Clausing Corp), 5458K2 (Mcmaster-Carr Supply Co), C-12 (Clausing Industrial Inc Dba Clausing Corp).
Key specifications for 5458K2: Flow Control Device: DISK; Furnished Items and Quantity: 1 HANDLE; Connection Style: BARBED-BEADED (HOSE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END. 15 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.