The Disk,valve, cataloged under National Stock Number 4820-00-737-0664, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-737-0664 |
| Primary Part Number | 9194770-19 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Shank Diameter | 0.080 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.468 INCHES NOMINAL IN |
| Flange Diameter | 0.135 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 9194770-19 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 217925PC141 | 5/2 Secondary reference U.S. Government activity |
| 127502 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-737-0664 is a Disk,valve, manufactured by Us Army Aviation and Missile Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-737-0664 has 1 manufacturer part number on file: 9194770-19 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-668-5096. Verify interchangeability with system specifications before substitution.
Key specifications for 9194770-19: Shank Diameter: 0.080 INCHES NOMINAL IN; Flange Seat to Disk End Height: 0.468 INCHES NOMINAL IN; Flange Diameter: 0.135 INCHES NOMINAL IN; Overall Height: 0.600 INCHES NOMINAL IN. 5 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.