The Disk,valve, cataloged under National Stock Number 4820-00-623-8916, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-623-8916 |
| Primary Part Number | FV84-632-1 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Lower Surface Width | 0.094 INCHES NOMINAL IN |
| Shoulder Width | 0.047 INCHES NOMINAL IN |
| Shoulder Height | 0.062 INCHES NOMINAL IN |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Inside Diameter | 0.094 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| FV84-632-1 PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| HVA162-633PC19 | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 4820-00-623-8916 is a Disk,valve, manufactured by Automatic Switch Company Dba Asco, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-623-8916 has 1 manufacturer part number on file: FV84-632-1 (Automatic Switch Company Dba Asco).
Key specifications for FV84-632-1: Overall Height: 0.156 INCHES NOMINAL IN; Lower Surface Width: 0.094 INCHES NOMINAL IN; Shoulder Width: 0.047 INCHES NOMINAL IN; Shoulder Height: 0.062 INCHES NOMINAL IN. 7 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.