The Disk,valve, cataloged under National Stock Number 4820-00-375-7854, 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 9 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-375-7854 |
| Primary Part Number | 5119-4824-3823PC3-1-21N |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shoulder Width | 0.212 INCHES NOMINAL IN |
| Shoulder Height | 0.240 INCHES NOMINAL IN |
| Outside Diameter | 0.940 INCHES NOMINAL IN |
| Style Designator | PLUG |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Nominal Thread Size | 0.563 INCHES IN |
| Thread Class | 2B |
| Material | NICKEL ALLOY |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 5119-4824-3823PC3-1-21N PRIMARY | Naval Sea Systems Command (USA) |
| 4824-312968REVAPC3 PRIMARY | Naval Sea Systems Command (USA) |
| 5VBF72REVAPC3 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 5119-4824-3824PC84655 PRIMARY | Naval Sea Systems Command (USA) |
| 84655 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 5119-4824-3823ALT1PC3-3-4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5119-4824-3824PC84655 | 5/9 Secondary reference U.S. Government activity |
| R6336CPC84655 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
| 5119-4824-3824ALT1PC3-84655 | 5/9 Secondary reference Naval Sea Systems Command |
| R6336CALT1PC3-84655 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
| 5119-4824-3823ALT1PC3-3-4 | 5/9 Secondary reference U.S. Government activity |
| 5119-4824-3823PC3-1-21N | 5/9 Secondary reference U.S. Government activity |
| S6336BPC3-1-2IN | 5/9 Secondary reference Ashcroft Inc Dba Heise |
| S6336BALT1PC3-3-4 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
| 4824-3132968REVAPC3 | 5/9 Secondary reference U.S. Government activity |
| 5119-4824-3824ALT1PC3-84655 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-375-7854 is a Disk,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-375-7854 has 6 manufacturer part numbers on file: 5119-4824-3823PC3-1-21N (Naval Sea Systems Command), 4824-312968REVAPC3 (Naval Sea Systems Command), 5VBF72REVAPC3 (Ashcroft Inc Dba Heise), 5119-4824-3824PC84655 (Naval Sea Systems Command), 84655 (Ashcroft Inc Dba Heise) and 1 more.
Key specifications for 5119-4824-3823PC3-1-21N: Overall Height: 1.562 INCHES NOMINAL IN; Shoulder Width: 0.212 INCHES NOMINAL IN; Shoulder Height: 0.240 INCHES NOMINAL IN; Outside Diameter: 0.940 INCHES NOMINAL IN. 9 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.