The Indicator,valve Opening, cataloged under National Stock Number 4820-01-454-9966, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Omnithruster Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-454-9966 |
| Primary Part Number | C-42SV0538 |
| Item Name | Indicator,valve Opening |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Omnithruster Inc. |
| Status | ACTIVE |
| Material | STEEL COMP 316 CASE |
| Pointer Purpose | VALVE POSITION |
| 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 |
|---|---|
| C-42SV0538 PRIMARY | Omnithruster Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2570-PL1-10000 | D/9 Drawing number reference only Omnithruster Inc. |
NSN 4820-01-454-9966 is a Indicator,valve Opening, manufactured by Omnithruster Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-454-9966 has 1 manufacturer part number on file: C-42SV0538 (Omnithruster Inc.).
Key specifications for C-42SV0538: End Item Identification: THRUSTER ASSEMBLY MODEL JT 1100-TD; Material: STEEL COMP 316 CASE; Pointer Purpose: VALVE POSITION. 2 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.