The Valve,check, cataloged under National Stock Number 4820-01-126-9458, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-126-9458 |
| Primary Part Number | 414PS405-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 414PS405-1 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 2S2806-1 | 5/9 Secondary reference U.S. Government activity |
| 2S2806 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-126-9458 is a Valve,check, manufactured by The Boeing Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-126-9458 has 1 manufacturer part number on file: 414PS405-1 (The Boeing Company).
Key specifications for 414PS405-1: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; Part Name Assigned by Controlling Agency: (DRAWING); VALVE, FUEL CHECK LOW PRESSURE-MALE/FEMALE; End Item Identification: MH-47E HELICOPTER. 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 4820-01-126-9458 has DEMIL Code Q. 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.