The Disk,valve, cataloged under National Stock Number 4820-01-194-8565, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-194-8565 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Outside Diameter | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Style Designator | SOLID |
| Material Document and Classification | AMS 5516 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5519 ASSN STD 2ND MATERIAL RESPONSE |
| Media for Which Designed | AIR OR LIQUID |
| Material | STEEL COMP 302 OR STEEL COMP 301 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2014T15P02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-194-8565 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-194-8565: Overall Height: 0.0095 INCHES MINIMUM AND 0.0105 INCHES MAXIMUM IN; Outside Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Style Designator: SOLID; Material Document and Classification: AMS 5516 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5519 ASSN STD 2ND MATERIAL RESPONSE. 5 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.