The Indicator,valve Opening, cataloged under National Stock Number 4820-01-633-8304, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aerometals, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Indicator,valve Opening |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Aerometals, Inc. (CAGE 32664) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-633-8304 |
| Primary Part Number | 369A4521-7 |
| Item Name | Indicator,valve Opening |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aerometals, Inc. |
| 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 |
|---|---|
| 369A4521-7 PRIMARY | Aerometals, Inc. (USA) |
NSN 4820-01-633-8304 is a Indicator,valve Opening, manufactured by Aerometals, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-633-8304 has 1 manufacturer part number on file: 369A4521-7 (Aerometals, Inc.).
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.