The Seat,valve, cataloged under National Stock Number 4820-00-586-8749, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company Div Commercial. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-586-8749 |
| Primary Part Number | 6-84668-1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Flange Diameter | 0.400 INCHES NOMINAL IN |
| Body Outside Diameter | 0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.189 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN |
| Under Flange Height | 0.460 INCHES NOMINAL IN |
| Material | STEEL BODY |
| 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 |
|---|---|
| 6-84668-1 PRIMARY | The Boeing Company Div Commercial (USA) |
| Reference | Meaning |
|---|---|
| 6-84668-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-586-8749 is a Seat,valve, manufactured by The Boeing Company Div Commercial, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-586-8749 has 1 manufacturer part number on file: 6-84668-1 (The Boeing Company Div Commercial).
Key specifications for 6-84668-1: Flange Diameter: 0.400 INCHES NOMINAL IN; Overall Height: 0.840 INCHES NOMINAL IN; Body Outside Diameter: 0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Body Inside Diameter: 0.189 INCHES MINIMUM AND 0.191 INCHES MAXIMUM 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.