The Retainer,disk,valve, cataloged under National Stock Number 4820-01-351-6479, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-351-6479 |
| Primary Part Number | 109558 |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Valve Model Number for Which Designed | FSC APPLICATION DATA:CONTROL,BLEED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 109558 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 4820-01-351-6479 is a Retainer,disk,valve, manufactured by Triumph Engine Control Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-351-6479 has 1 manufacturer part number on file: 109558 (Triumph Engine Control Systems Llc).
Key specifications for 109558: Valve Model Number for Which Designed: FSC APPLICATION DATA:CONTROL,BLEED; Special Features: CORROSION RESISTANT STEEL;1 5/8 IN. L;51/64 IN. W IN; End Item Identification: J-52 ENGINE. 1 specification is 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.
NSN 4820-01-351-6479 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.