The Piston,valve, cataloged under National Stock Number 4810-00-479-0652, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Meggitt Troy Inc. 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. 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 | 4810-00-479-0652 |
| Primary Part Number | 419-0141 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Meggitt Troy Inc |
| Status | ACTIVE |
| Valve Type for Which Designed | PRESSURE REDUCING |
| Outside Diameter | 0.249 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM |
| Valve Design Control Activity | 78385 |
| 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 |
|---|---|
| 419-0141 PRIMARY | Meggitt Troy Inc (USA) |
NSN 4810-00-479-0652 is a Piston,valve, manufactured by Meggitt Troy Inc, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-479-0652 has 1 manufacturer part number on file: 419-0141 (Meggitt Troy Inc).
1 possible match (shared part number, not a government interchangeability claim): 2590-01-045-7335. Verify interchangeability with system specifications before substitution.
Key specifications for 419-0141: Valve Type for Which Designed: PRESSURE REDUCING; Outside Diameter: 0.249 INCHES NOMINAL IN; Overall Length: 1.086 INCHES NOMINAL IN; Surface Treatment: CHROMIUM. 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.