The Disk,valve, cataloged under National Stock Number 4820-01-209-6074, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-209-6074 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Outside Diameter | 1.764 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Style Designator | PLAIN |
| Material Document and Classification | KEL-F-81, GRADE 3 MFR REF SINGLE MATERIAL RESPONSE |
| Inside Diameter | 1.438 INCHES NOMINAL IN |
| Media for Which Designed | GAS OR OIL OR WATER |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 803-2177934-X6XX-12 | 5/1 Secondary reference U.S. Government activity |
| 803-2177934-X7XX-12 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-01-209-6074 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-209-6074: Overall Height: 0.250 INCHES NOMINAL IN; Outside Diameter: 1.764 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Style Designator: PLAIN. 8 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.
NSN 4820-01-209-6074 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.