The Valve,flow Control, cataloged under National Stock Number 4820-01-571-4882, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Griswold Controls Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-571-4882 |
| Primary Part Number | 3654BKKO 28GPM |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Griswold Controls Llc |
| Status | ACTIVE |
| Maximum Operating Temp and Media for Which Designed | 250.0 FAHRENHEIT WATER DEGF |
| Body Material Document and Classification | BRASS ALLOY ASTM B584 ASSN STD SINGLE MATERIAL RESPONSE |
| Operating Pressure and Type | 300.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS |
| End Connection Quantity | 2 |
| Valve Size | 1.500 INCHES IN |
| Body Material | COPPER ALLOY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 24087-512-0137 A12 PC 2 | Imeco Inc (USA) |
| 3654BKKO 28GPM PRIMARY | Griswold Controls Llc (USA) |
NSN 4820-01-571-4882 is a Valve,flow Control, manufactured by Griswold Controls Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-571-4882 has 2 manufacturer part numbers on file: 24087-512-0137 A12 PC 2 (Imeco Inc), 3654BKKO 28GPM (Griswold Controls Llc).
Key specifications for 3654BKKO 28GPM: Maximum Operating Temp and Media for Which Designed: 250.0 FAHRENHEIT WATER DEGF; Body Material Document and Classification: BRASS ALLOY ASTM B584 ASSN STD SINGLE MATERIAL RESPONSE; Operating Pressure and Type: 300.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS; End Connection Quantity: 2. 7 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.