The Valve,butterfly, cataloged under National Stock Number 4820-01-684-3698, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Keystone Intl Inc. Government technical data includes 9 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 | 4820-01-684-3698 |
| Primary Part Number | GRL10 D11E A1 KB0 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Keystone Intl Inc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 230.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 10.0 INCHES IN |
| Maximum Operating Temp | 320.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Mounting Facility | LUG(S) |
| Face to Face Distance | 68.0 MILLIMETERS MM |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| 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 |
|---|---|
| GR-0250L0A10016-D1S00S0E0001B | Cornerstone Controls, Inc. (USA) |
| GRL10 D11E A1 KB0 PRIMARY | Keystone Intl Inc (USA) |
NSN 4820-01-684-3698 is a Valve,butterfly, manufactured by Keystone Intl Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-684-3698 has 2 manufacturer part numbers on file: GR-0250L0A10016-D1S00S0E0001B (Cornerstone Controls, Inc.), GRL10 D11E A1 KB0 (Keystone Intl Inc).
Key specifications for GRL10 D11E A1 KB0: Flange Shape: ROUND WITH HOLES ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 230.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 9 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.