The Valve,restrictor Check, cataloged under National Stock Number 4820-01-035-1008, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 16 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 | 4820-01-035-1008 |
| Primary Part Number | 12007779 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | FLARELESS FIRST END |
| Mounting Position | HORIZONTAL |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Aperture Diameter | 0.017 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.4375 INCHES FIRST END IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Disk Loading Method | SPRING |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Thread Class | 3A FIRST END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| 12007779 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 4820-01-035-1008 is a Valve,restrictor Check, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-035-1008 has 1 manufacturer part number on file: 12007779 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 12007779: Flow Control Device: POPPET; Connection Style: FLARELESS FIRST END; Mounting Position: HORIZONTAL; Connection Type: THREADED EXTERNAL TUBE FIRST END. 16 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.