The Disk,valve, cataloged under National Stock Number 4820-01-417-2376, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-417-2376 |
| Primary Part Number | 803-6397434-X11XXX ITEM 14 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Diameter | 0.780 INCHES NOMINAL IN |
| Seat Angle | 15.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 803-6397434-014 | Naval Sea Systems Command (USA) |
| 803-6397434-X11XXX ITEM 14 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6397434 | D/9 Drawing number reference only Naval Sea Systems Command |
| 803-6397434-X11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4820-01-417-2376 is a Disk,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-417-2376 has 2 manufacturer part numbers on file: 803-6397434-014 (Naval Sea Systems Command), 803-6397434-X11XXX ITEM 14 (Naval Sea Systems Command).
Key specifications for 803-6397434-X11XXX ITEM 14: Overall Height: 0.656 INCHES NOMINAL IN; Outside Diameter: 0.780 INCHES NOMINAL IN; Seat Angle: 15.0 DEGREES NOMINAL; Special Features: COBALT CHROMIUM TUNGSTEN NICKEL MATERIAL PER MIL-C-24252, COMP 1 COND CA-7; THIS DISK GOES ON THE SIZE 0.25 INCH GLOBE VALVE IN. 2 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.