The Disk,valve, cataloged under National Stock Number 4820-00-133-0859, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Komatsu America Corp.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-133-0859 |
| Primary Part Number | 619080C1 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Shank Diameter | 0.200 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.546 INCHES NOMINAL IN |
| Flange Diameter | 0.200 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Seat Angle | 15.0 DEGREES NOMINAL |
| Inside Diameter | 0.125 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 619080C1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 619080C1 | 5/9 Secondary reference U.S. Government activity |
| 13823 | 3/2 Design control — primary reference U.S. Government activity |
| 619080C1 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 4820-00-133-0859 is a Disk,valve, manufactured by Komatsu America Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-133-0859 has 1 manufacturer part number on file: 619080C1 (Komatsu America Corp.).
5 possible matches (shared part number, not a government interchangeability claim): 5950-00-244-4356, 2030-00-309-5423, 1660-00-778-6951. Verify interchangeability with system specifications before substitution.
Key specifications for 619080C1: Shank Diameter: 0.200 INCHES NOMINAL IN; Flange Seat to Disk End Height: 0.546 INCHES NOMINAL IN; Flange Diameter: 0.200 INCHES NOMINAL IN; Overall Height: 0.750 INCHES NOMINAL IN. 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.