The Disk,valve, cataloged under National Stock Number 4820-01-124-7964, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lexair Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-124-7964 |
| Primary Part Number | 761-204-100-100-016 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lexair Inc |
| Status | ACTIVE |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 180.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 10.164 INCHES NOMINAL IN |
| Style Designator | BUTTERFLY |
| Material Thickness | 0.520 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.039 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 761-204-100-100-016 PRIMARY | Lexair Inc (USA) |
| Reference | Meaning |
|---|---|
| 39-2-1 ITEM 2 VALVE 11-2-1R10.0 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp |
| 39-2-1 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp |
| 761-204-100-100-016 | 3/9 Design control — primary reference Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-124-7964 is a Disk,valve, manufactured by Lexair Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-124-7964 has 1 manufacturer part number on file: 761-204-100-100-016 (Lexair Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-161-6672, 4820-01-168-1978, 6520-01-180-3234. Verify interchangeability with system specifications before substitution.
Key specifications for 761-204-100-100-016: Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 180.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 10.164 INCHES NOMINAL IN; Style Designator: BUTTERFLY. 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.