The Disk,valve, cataloged under National Stock Number 4820-00-564-9275, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-564-9275 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Shank Diameter | 0.313 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.468 INCHES NOMINAL IN |
| Flange Diameter | 0.625 INCHES NOMINAL IN |
| Style Designator | CONE CHECK |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Under Flange Height | 0.115 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING AND PLASTIC |
| 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 |
|---|---|
| 810-2177934-151 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 810-2177934-151-10-12-13-15 | 5/9 Secondary reference Crane Co Div Valve Div |
| 810-2177934-151-10-12-13-15 | 5/9 Secondary reference U.S. Government activity |
| 803-2177934-X151-41 | 3/2 Design control — primary reference U.S. Government activity |
| 803-2177934 | D/9 Drawing number reference only U.S. Government activity |
| 810-2177934-151-10-12-13-15 | 5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| 810-2177934-151-10-12-13-15 | 5/9 Secondary reference The Walworth Company |
| 810-2177934-X151-41 | 5/9 Secondary reference U.S. Government activity |
| 803-2177934-X1X | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 803-2177934-X15 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-00-564-9275 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-564-9275: Shank Diameter: 0.313 INCHES NOMINAL IN; Flange Seat to Disk End Height: 0.468 INCHES NOMINAL IN; Flange Diameter: 0.625 INCHES NOMINAL IN; Overall Height: 0.892 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.