The Disk,valve, cataloged under National Stock Number 4820-01-431-6680, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-431-6680 |
| Primary Part Number | 6983468 PIECE 43 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shoulder Height | 0.380 INCHES NOMINAL IN |
| Outside Diameter | 7.720 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE |
| Inside Diameter | 1.001 INCHES NOMINAL IN |
| Media for Which Designed | WATER, SALT |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 |
| 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 |
|---|---|
| 803-6983468-PC043 | Naval Sea Systems Command (USA) |
| 6983468 PIECE 43 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6983468 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-431-6680 is a Disk,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-431-6680 has 2 manufacturer part numbers on file: 803-6983468-PC043 (Naval Sea Systems Command), 6983468 PIECE 43 (Naval Sea Systems Command).
Key specifications for 6983468 PIECE 43: Overall Height: 1.310 INCHES NOMINAL IN; Shoulder Height: 0.380 INCHES NOMINAL IN; Outside Diameter: 7.720 INCHES NOMINAL IN; Style Designator: PLAIN. 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.