The Valve,restrictor Check, cataloged under National Stock Number 4820-01-088-0344, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Solar Turbines Incorporated Dba Solar Turbines Incorporated. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-088-0344 |
| Primary Part Number | 45352-100 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Solar Turbines Incorporated Dba Solar Turbines Incorporated |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | FLARED (TUBE) FIRST END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Style Designator | ANGLE |
| Aperture Diameter | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 30.0 DEGREES FIRST END |
| Disk Loading Method | SPRING |
| Thread Class | 2A 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 |
|---|---|
| 45352-100 PRIMARY | Solar Turbines Incorporated Dba Solar Turbines Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 45352-100 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 4820-01-088-0344 is a Valve,restrictor Check, manufactured by Solar Turbines Incorporated Dba Solar Turbines Incorporated, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-088-0344 has 1 manufacturer part number on file: 45352-100 (Solar Turbines Incorporated Dba Solar Turbines Incorporated).
Key specifications for 45352-100: Flow Control Device: DISK; Connection Style: FLARED (TUBE) FIRST END; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: THREADED EXTERNAL TUBE FIRST END. 14 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.