The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-377-4147, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Rtx Corporation Div Pratt & Whitney (CAGE 55820); Solar Turbines Incorporated Dba Solar Turbines Incorporated (CAGE 66195) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-377-4147 |
| Primary Part Number | TWS-2402-S-31 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Solar Turbines Incorporated Dba Solar Turbines Incorporated |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 991620C1 | Rtx Corporation Div Pratt & Whitney (USA) |
| TWS-2402-S-31 PRIMARY | Solar Turbines Incorporated Dba Solar Turbines Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 991620C1 | 5/9 Secondary reference Elcom Specialty Products Dba Elcom Bauer |
| TWS-2402-S-31 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
| TWS-2402-S-31 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-377-4147 is a Valve,linear,directional Control, manufactured by Solar Turbines Incorporated Dba Solar Turbines Incorporated, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-377-4147 has 2 manufacturer part numbers on file: 991620C1 (Rtx Corporation Div Pratt & Whitney), TWS-2402-S-31 (Solar Turbines Incorporated Dba Solar Turbines Incorporated).
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.