The Disk,valve, cataloged under National Stock Number 4820-01-343-7539, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-343-7539 |
| Primary Part Number | 33764-15 PART 3545-000-68VM |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Shoulder Width | 0.130 INCHES NOMINAL IN |
| Shoulder Height | 0.128 INCHES NOMINAL IN |
| Style Designator | PLUG |
| Seat Angle | 25.0 DEGREES NOMINAL |
| Nominal Thread Size | 0.140 INCHES IN |
| Thread Class | 2A A |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNF |
| Reference Number Differentiating Characteristics | MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION |
| 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 |
|---|---|
| 33764-15 PART 3545-000-68VM | Naval Inventory Control Point Mechanicsburg (USA) |
| 3545-000-068VM | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 3545-000-068 | 3/1 Design control — primary reference Velan Valve Corp. |
| 33764-15 PART 3545-000-68 | 5/1 Secondary reference Velan Valve Corp. |
NSN 4820-01-343-7539 is a Disk,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-343-7539 has 2 manufacturer part numbers on file: 33764-15 PART 3545-000-68VM (Naval Inventory Control Point Mechanicsburg), 3545-000-068VM (Naval Inventory Control Point Mechanicsburg).
Key specifications for 33764-15 PART 3545-000-68VM: Overall Height: 0.844 INCHES NOMINAL IN; Shoulder Width: 0.130 INCHES NOMINAL IN; Shoulder Height: 0.128 INCHES NOMINAL IN; Style Designator: PLUG. 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.